# Best Call Center Infrastructure (CCI) Software - Page 4

## How Many Call Center Infrastructure (CCI) Software Products Does G2 Track?

**Total Products under this Category:** 366

### Category Stats (Aug 2026)

- **Average Rating:** 4.42/5 The average rating of products in this category, based on all submitted ratings
- **Top Trending Product:** MyOperator (+8.29%) - Among all products in this category, MyOperator recorded the largest rating increase compared to last month

_Last updated: August 04, 2026_

## How Does G2 Rank Call Center Infrastructure (CCI) Software Products?

**Why You Can Trust G2's Software Rankings:**

- 30 Analysts and Data Experts
- 40,300+ Authentic Reviews
- 366+ Products
- Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

## G2 Grid® for Call Center Infrastructure (CCI) Software
 ![G2 Grid® for Call Center Infrastructure (CCI) Software plotting products by satisfaction and market presence](https://www.g2.com/categories/call-center-infrastructure-cci/grids.png?focus%5B%5D=1173&focus%5B%5D=348&focus%5B%5D=53495&focus%5B%5D=4872&focus%5B%5D=5511&focus%5B%5D=87468&focus%5B%5D=4215&focus%5B%5D=70977)

Highlighted products: RingEX, Five9 Intelligent Cloud Contact Center Platform, Nextiva, Aircall, Talkdesk, CloudTalk, Genesys Cloud CX, and Webex Calling.

Underlying data: [Grid® JSON](https://www.g2.com/categories/call-center-infrastructure-cci/grids.json?focus%5B%5D=ringex&focus%5B%5D=five9-intelligent-cloud-contact-center-platform&focus%5B%5D=nextiva&focus%5B%5D=aircall&focus%5B%5D=talkdesk&focus%5B%5D=cloudtalk&focus%5B%5D=genesys-cloud-cx&focus%5B%5D=webex-calling)

**Sponsored**

### Procedureflow

Procedureflow transforms complex operating procedures into structured visual workflows that people and AI agents can follow in real time. Teams receive step-by-step guidance in the flow of work, while AI agents access governed, structured knowledge through APIs. Procedureflow integrates with enterprise systems to deliver guidance directly where work happens and provide insights into process adoption, execution, and operational performance. Procedureflow is the AI knowledge infrastructure for guided execution: visual by design, governed by default, and machine-readable from day one. Built for regulated, high-stakes operations across financial services, insurance, utilities, healthcare, government, and retail, Procedureflow helps organizations standardize execution at scale. The result is faster onboarding, audit-ready operations, reduced operational risk, and one governed source of truth for both humans and AI. No more static PDFs, outdated wikis, or hallucinated answers for the work that matters most. Proven results across 120+ organizations.

[Visit website](https://www.g2.com/external_clickthroughs/record?secure%5Bad_program%5D=ppc&secure%5Bad_slot%5D=category_product_list_llm&secure%5Bcategory_id%5D=35&secure%5Bchosen_at%5D=2026-08-07T07%3A29%3A16Z&secure%5Bdisplayable_resource_id%5D=35&secure%5Bdisplayable_resource_type%5D=Category&secure%5Bmedium%5D=sponsored&secure%5Bplacement_reason%5D=page_category&secure%5Bplacement_resource_ids%5D%5B%5D=35&secure%5Bprioritized%5D=false&secure%5Bproduct_id%5D=20875&secure%5Bresource_id%5D=35&secure%5Bresource_type%5D=Category&secure%5Bsource_type%5D=category_page&secure%5Bsource_url%5D=https%3A%2F%2Fwww.g2.com%2Fcategories%2Fcall-center-infrastructure-cci%3Fpage%3D4%26source_location%3Dcategories%2523show&secure%5Btoken%5D=15c0fad926e7bbd73aa1ade26c674fbaf71a4198077d72f327da1b9e67eff5be&secure%5Burl%5D=https%3A%2F%2Fprocedureflow.com%2Fg2-reviews%3Futm_source%3Dg2%26utm_medium%3Dpaid_social%26utm_campaign%3Dg2_2026&secure%5Burl_type%5D=custom_url)

### [3CX](https://www.g2.com/products/3cx/reviews)

3CX is a business communications system that replaces traditional PBXs. Offering one all encompassing solution for calls, video conferencing, live chat and messaging. It's open standard, meaning you can use it with any IP Phone or SIP trunk provider. Built for remote working and mobility through its apps for Android, iOS and the Web. This award-winning software innovates business connectivity and collaboration. enabling companies of all sizes to cut telco costs, boost employee productivity, and enhance customer experience. Benefits: Easy to install and manage; Low cost to buy and maintain. Available on-premise or hosted.

**Average Rating:** 4.4/5.0

**Total Reviews:** 431

#### How Do G2 Users Rate 3CX?

- **Has the product been a good partner in doing business?:** 8.6/10 (Category avg: 9.1/10)
- **Call Routing:** 8.8/10 (Category avg: 8.9/10)
- **Performance Evaluation:** 8.7/10 (Category avg: 8.6/10)
- **Call Monitoring:** 9.2/10 (Category avg: 8.8/10)

#### Who Is the Company Behind 3CX?

- **Seller:** [3CX](https://www.g2.com/sellers/3cx)
- **Company Website:** www.3cx.com
- **Year Founded:** 2005
- **HQ Location:** Nicosia
- **Twitter:** @3CX  
30,475 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=e1f4fa175e63e9522ddddce3e3e2e81a05863cacd5649e8e9b5285b0ffdc8eda&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F1021704%2F&secure%5Burl_type%5D=linkedin_company_website)  
182 employees on LinkedIn®

#### Who Uses This Product?

- **Who Uses This:** IT Manager, President
- **Top Industries:** Information Technology and Services, Telecommunications
- **Company Size:** 50% Medium, 43% Small

#### What Do G2 Reviewers Say About 3CX?

_AI-generated summary from verified user reviews_

##### Pros

- Users love the **ease of use** of 3CX, which simplifies communication and enhances efficiency across devices.
- Users value the **reliability** of 3CX, ensuring seamless communication without missing calls and excellent support when needed.
- Users value the **flexibility** of 3CX, benefiting from seamless communication across various platforms and devices.
- Users love the **seamless communication and reliability** of 3CX, enhancing productivity and enabling easy connectivity.
- Users commend the **easy setup** of 3CX, enabling quick deployment and immediate use for communication needs.

##### Cons

- Users find 3CX's **complex processes** challenging, especially for non-technical administrators needing extensive configuration support.
- Users report that **difficult configuration** processes can hinder usability for non-technical administrators, complicating management tasks.
- Users find the **learning curve challenging** , with some configurations taking time and requiring technical support to manage effectively.
- Users are frustrated by **limited features** and missing reports, impacting the overall utility of 3CX.
- Users find 3CX to be **expensive** , especially non-profits seeking more affordable pricing options for their organizations.

#### What Are Recent G2 Reviews of 3CX?

**["Unmatched Value: 3CX’s Feature-Rich PBX That Just Works"](https://www.g2.com/survey_responses/3cx-review-5362484)**

**Rating:** 5.0/5.0 stars

_— Dan K._

[Read full review](https://www.g2.com/survey_responses/3cx-review-5362484)

**["Easy Setup, Flexible SIP Trunk Extensions, and Strong Business Messaging"](https://www.g2.com/survey_responses/3cx-review-12707768)**

**Rating:** 4.5/5.0 stars

_— Matthew W._

[Read full review](https://www.g2.com/survey_responses/3cx-review-12707768)

#### What Are G2 Users Discussing About 3CX?

- [What is 3CX used for?](https://www.g2.com/discussions/what-is-3cx-used-for) - 1 comment, 1 upvote

### [MCUBE Cloud Contact Center Solutions](https://www.g2.com/products/mcube-cloud-contact-center-solutions/reviews)

MCUBE is a leading cloud telephony and AI-powered communication platform designed to help businesses streamline customer engagement, enhance support efficiency, and scale operations effortlessly. By integrating voice bots, IVR systems, auto-dialers, and AI-driven call analytics, MCUBE empowers organizations to manage all customer interactions from a single platform. Our solution is trusted by companies across industries to: Automate routine calls and inquiries with intelligent voice bots. Improve customer support response times through seamless cloud telephony integration. Gain actionable insights from call data to enhance business decisions. Scale effortlessly without the need for expensive on-premise infrastructure. Whether you’re a small business seeking efficient customer engagement or an enterprise aiming for advanced conversational AI capabilities, mCUBE provides a flexible, reliable, and secure cloud communication solution to meet your needs. Key Features: AI-powered voice and chatbots Cloud IVR and auto-dialer systems Call tracking and analytics Seamless CRM integrations Multi-channel communication support Mission: To simplify communication for businesses in India and globally, enabling seamless interactions with customers while reducing operational complexity and costs.

**Average Rating:** 4.7/5.0

**Total Reviews:** 21

#### How Do G2 Users Rate MCUBE Cloud Contact Center Solutions?

- **Has the product been a good partner in doing business?:** 8.6/10 (Category avg: 9.1/10)
- **Call Routing:** 9.2/10 (Category avg: 8.9/10)
- **Performance Evaluation:** 9.2/10 (Category avg: 8.6/10)
- **Call Monitoring:** 9.7/10 (Category avg: 8.8/10)

#### Who Is the Company Behind MCUBE Cloud Contact Center Solutions?

- **Seller:** [MCUBE](https://www.g2.com/sellers/mcube-4a8e04c2-b29e-4cf4-b2c6-91a13e432483)
- **Year Founded:** 2006
- **HQ Location:** Bangalore, IN
- **Twitter:** @MCUBE1234  
137 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=f86137df3ef70d9b1265108ff2336fa33194512f32a9cb229b05daa20bc02708&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fvmc-mcube%2F&secure%5Burl_type%5D=linkedin_company_website)  
104 employees on LinkedIn®

#### Who Uses This Product?

- **Top Industries:** Real Estate
- **Company Size:** 50% Small, 45% Medium

#### What Do G2 Reviewers Say About MCUBE Cloud Contact Center Solutions?

_AI-generated summary from verified user reviews_

##### Pros

- Users value the **smooth CRM integration** with MCUBE, enhancing overall efficiency and user experience.
- Users praise the **clear call quality** of MCUBE Cloud Contact Center, enhancing communication effectiveness and user satisfaction.
- Users value the **real-time tracking** provided by the live dashboard, enhancing team management and call clarity.
- Users commend the **ease of use** of MCUBE, appreciating its reliable call quality and smooth CRM integration.
- Users appreciate the **easy integrations** of MCUBE, benefiting from a unified platform for various communication solutions.

#### What Are Recent G2 Reviews of MCUBE Cloud Contact Center Solutions?

**["Seamless Communication with Exceptional Support"](https://www.g2.com/survey_responses/mcube-cloud-contact-center-solutions-review-12566728)**

**Rating:** 5.0/5.0 stars

_— Richard M._

[Read full review](https://www.g2.com/survey_responses/mcube-cloud-contact-center-solutions-review-12566728)

**["Reliable, Easy-to-Use Call Management with Great Reporting and Support"](https://www.g2.com/survey_responses/mcube-cloud-contact-center-solutions-review-12468292)**

**Rating:** 5.0/5.0 stars

_— Amit S._

[Read full review](https://www.g2.com/survey_responses/mcube-cloud-contact-center-solutions-review-12468292)

### [3CLogic Cloud Call Center](https://www.g2.com/products/3clogic-cloud-call-center/reviews)

3CLogic transforms customer and employee experiences with its patented and award-winning AI-powered cloud contact center solutions purpose-built to enhance today's leading CRM and Customer Service Management platforms (i.e.: ServiceNow, SAP, Salesforce, etc.). Globally available and leveraged by the world's leading brands, its offerings empower enterprise organizations with innovative capabilities, such as intelligent self-service, Generative AI, Conversational AI, agent automation & coaching, and AI-powered sentiment analytics — all designed to lower operational costs, maximize ROI, and deliver better, faster, and more personalized interactions for IT, employee, and customer service. Built on Amazon Web Services (AWS), the solution delivers highly-available, flexible, and secure (i.e.: ISO 27001, SOC 2, HIPPA, GDPR, etc.) services with various deployment models available (i.e.: Total Cloud, Hybrid Cloud, etc.) to meet the varying needs of enterprise businesses. With 3CLogic, organizations improve automation & self-service, change control, agent productivity (ie: Sales, Help Desk, Customer Support, HR, etc.), and administrative visibility into what drives successful CX and EX outcomes. 3CLogic — reimagining customer and employee experiences so you don’t have to.

**Average Rating:** 4.5/5.0

**Total Reviews:** 48

#### How Do G2 Users Rate 3CLogic Cloud Call Center?

- **Has the product been a good partner in doing business?:** 9.3/10 (Category avg: 9.1/10)
- **Call Routing:** 9.5/10 (Category avg: 8.9/10)
- **Performance Evaluation:** 9.6/10 (Category avg: 8.6/10)
- **Call Monitoring:** 9.8/10 (Category avg: 8.8/10)

#### Who Is the Company Behind 3CLogic Cloud Call Center?

- **Seller:** [3CLogic](https://www.g2.com/sellers/3clogic)
- **Year Founded:** 2005
- **HQ Location:** Rockville, Maryland
- **Twitter:** @3CLogic  
1,966 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=3aec7ea6b6fc62eeddc4ea79237b8b8b513c2225b1f59a69c44a1d8b3cfa8b16&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F61895%2F&secure%5Burl_type%5D=linkedin_company_website)  
176 employees on LinkedIn®
- **Phone:** 800 350 8656

#### Who Uses This Product?

- **Top Industries:** Information Technology and Services
- **Company Size:** 44% Large, 32% Medium

#### What Do G2 Reviewers Say About 3CLogic Cloud Call Center?

_AI-generated summary from verified user reviews_

##### Pros

- Users value the **exceptional customer support** from 3CLogic, noting their responsiveness and commitment to success.
- Users commend 3CLogic for their **exceptional support and responsiveness** , enhancing reliability and collaboration throughout our partnership.
- Users commend the **exceptional support** from 3CLogic, highlighting their commitment and responsiveness in addressing our needs.
- Users commend the **efficiency** of 3CLogic, appreciating their quick resolutions and reliable support during critical situations.
- Users commend the **rapid response time** of 3CLogic, ensuring timely resolutions and confidence in their support team.

##### Cons

- Users feel frustrated by the **limited customization options** , particularly for dashboards and feature accessibility in 3CLogic.
- Users face occasional **connection issues** primarily due to network compatibility, impacting overall call quality and stability.
- Users desire more **customization options** for dashboards, finding the current setup restrictive despite responsive support.
- Users note a **steep learning curve** for new users, necessitating additional training and support for effective use.
- Users find it frustrating that **missing features** require requests for activation, impacting the overall functionality and experience.

#### What Are Recent G2 Reviews of 3CLogic Cloud Call Center?

**["Always available and dependable"](https://www.g2.com/survey_responses/3clogic-cloud-call-center-review-12505516)**

**Rating:** 5.0/5.0 stars

_— Verified User in Retail_

[Read full review](https://www.g2.com/survey_responses/3clogic-cloud-call-center-review-12505516)

**["Partnering with 3CLogic has been a truly positive experience."](https://www.g2.com/survey_responses/3clogic-cloud-call-center-review-11664080)**

**Rating:** 5.0/5.0 stars

_— Timothy J._

[Read full review](https://www.g2.com/survey_responses/3clogic-cloud-call-center-review-11664080)

#### What Are G2 Users Discussing About 3CLogic Cloud Call Center?

- [What is 3CLogic Cloud Call Center used for?](https://www.g2.com/discussions/what-is-3clogic-cloud-call-center-used-for)

### [Aloware](https://www.g2.com/products/aloware/reviews)

Aloware is an AI-powered contact center platform specifically designed for sales and support teams that operate within a Customer Relationship Management (CRM) system. By integrating calling, SMS, AI voice agents, a power dialer, and automation into a single platform, Aloware enhances productivity for teams using popular CRMs like HubSpot, Salesforce, Pipedrive, Zoho, and GoHighLevel. This comprehensive solution allows representatives to focus on selling rather than getting bogged down with administrative tasks like logging calls or chasing missed leads. Targeting a diverse range of industries, Aloware is utilized by over 1,000 teams across sectors such as SaaS, real estate, insurance, financial services, staffing, solar, home services, and legal. The platform is particularly beneficial for teams with 10 to 500 seats, especially those transitioning from basic calling solutions like Kixie, Aircall, JustCall, Dialpad, and RingCentral. These teams often seek a more robust system that combines AI capabilities, CRM depth, and compliance features, which Aloware provides seamlessly. What sets Aloware apart from its competitors is its unique "pickup stack." This includes features like NumberGuard, which monitors caller ID reputation in real-time; Branded Calling, which displays the company name and logo on the recipient's screen; and Local Presence, which automatically matches area codes. While many competitors may offer one of these features, Aloware integrates all three, enhancing the chances of successful connections. Additionally, Aloware's native CRM intelligence ensures that every interaction—be it a call, text, or voicemail—is automatically logged to the appropriate contact, deal, and pipeline stage, significantly reducing the time reps spend on CRM administration. Aloware also leverages AI throughout the entire sales cycle. The platform includes AI Voice Agents that can manage inbound qualification and booking around the clock, while the AloAi Text Bot qualifies leads via SMS. The Power Dialer efficiently sequences through CRM lists, and AI Call Summaries, sentiment analysis, and trending topics are automatically recorded and integrated back into the CRM after each conversation. This eliminates the need for separate AI vendors or additional engineering resources, streamlining the entire process. Compliance is another critical aspect of Aloware's offering. The platform manages A2P 10DLC registration, is SOC 2 certified, and includes features like PII redaction in transcripts and Do Not Contact (DNC) management, ensuring that compliance challenges that often hinder deployments with other vendors are effectively handled. With pricing starting at $30 per agent per month, Aloware provides a scalable solution for teams looking to enhance their sales and support capabilities while maintaining compliance and efficiency.

**Average Rating:** 4.1/5.0

**Total Reviews:** 817

#### How Do G2 Users Rate Aloware?

- **Has the product been a good partner in doing business?:** 9.0/10 (Category avg: 9.1/10)
- **Call Routing:** 7.7/10 (Category avg: 8.9/10)
- **Performance Evaluation:** 8.1/10 (Category avg: 8.6/10)
- **Call Monitoring:** 8.4/10 (Category avg: 8.8/10)

#### Who Is the Company Behind Aloware?

- **Seller:** [Aloware](https://www.g2.com/sellers/aloware)
- **Company Website:** aloware.com
- **Year Founded:** 2017
- **HQ Location:** Los Angeles, California
- **Twitter:** @alowaretalk  
392 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=6d8fa9b835f15f4a619026ba2109827700846142dbcd52893fa4be863dc71f14&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F18504566%2F&secure%5Burl_type%5D=linkedin_company_website)  
87 employees on LinkedIn®

#### Who Uses This Product?

- **Who Uses This:** Account Executive, National Account Executive
- **Top Industries:** Computer Software, Marketing and Advertising
- **Company Size:** 51% Small, 48% Medium

#### What Do G2 Reviewers Say About Aloware?

_AI-generated summary from verified user reviews_

##### Pros

- Users love the **ease of use** of Aloware, benefiting from its user-friendly interface and seamless CRM integration.
- Users value the **helpful customer support** of Aloware, ensuring swift assistance and a frustration-free experience.
- Users appreciate the **user-friendly interface** of Aloware, making it easy to navigate and integrate with CRM platforms.
- Users value the **time-saving capabilities** of Aloware, enjoying effortless SMS outreach and efficient lead management.
- Users love the **seamless integrations** with tools like HubSpot, enhancing communication and overall efficiency.

##### Cons

- Users face **call issues** with Aloware, experiencing interference, lags, and app freezes during outbound calls.
- Users report **slow performance** with Aloware, facing delays and glitches that hinder effective communication.
- Users experience **slow loading times** with Aloware, affecting the responsiveness and efficiency of the app.
- Users experience **software glitches** that hinder performance, causing frustration with response times and message delivery.
- Users are frustrated by **software bugs** causing glitches and slow responses, impacting overall functionality and experience.

#### What Are Recent G2 Reviews of Aloware?

**["Review"](https://www.g2.com/survey_responses/aloware-review-12880526)**

**Rating:** 4.5/5.0 stars

_— Verified User in Financial Services_

[Read full review](https://www.g2.com/survey_responses/aloware-review-12880526)

**["Great VM and SMS Templates with Smooth HubSpot Integration"](https://www.g2.com/survey_responses/aloware-review-12862372)**

**Rating:** 4.0/5.0 stars

_— Randy S._

[Read full review](https://www.g2.com/survey_responses/aloware-review-12862372)

#### What Are G2 Users Discussing About Aloware?

- [What is Aloware used for?](https://www.g2.com/discussions/what-is-aloware-used-for)

### [Avaya Contact Center](https://www.g2.com/products/avaya-contact-center/reviews)

Avaya Contact Center is delivered through Avaya Infinity, a cloud-native platform designed to orchestrate seamless customer experiences across all channels. Built on a modern microservices architecture with open AI orchestration, Avaya Infinity enables organizations to intelligently manage voice, digital, email, and messaging interactions. It provides dynamic routing, AI-powered automation, and real-time orchestration—with the unique flexibility to deploy fully in the cloud, on-premises, or in a hybrid environment. Core Capabilities: Voice Handling: Intelligent routing, real-time transcription, smart-search call recording, noise cancellation, callback support, and browser-based WebRTC calling via OmniSDK. Digital Channels: Feature-rich web chat (read receipts, typing indicators, interactive buttons), Microsoft 365 email integration, and messaging across key consumer platforms. Workflow Orchestration: Low-code/no-code workflow design, AI-generated workflows, SLA-based dynamic queueing, and secure PCI execution to automate end-to-end customer journeys. Agent Desktop: A unified, browser-based client featuring seamless CRM integration, screenpops, click-to-dial, and customizable UI through Infinity Elements. Outbound Campaigns: Fully automated voice, SMS, and email outreach with Predictive, Progressive, and Preview dialing modes. Analytics & Reporting: Real-time dashboards, historical supervisor tools, and advanced business intelligence powered by a Databricks data lakehouse architecture. AI & Technology Foundation: Tandem Care (Agentic AI): Bespoke AI assistants that seamlessly collaborate with human agents, augmenting their capabilities to make them up to 10x more productive while preserving the human touch. Model Context Protocol (MCP): Enables open AI orchestration, allowing organizations to securely connect any AI model with internal tools and APIs without vendor lock-in. AI Performance Index (APIx): A comprehensive set of value-driven KPIs that measure the real-world impact and effectiveness of AI within your contact center. Flexible Deployment Models: Cloud: A fully managed, cloud-native platform delivering the complete Infinity capability set with zero on-premises infrastructure required. Hybrid: Combines cloud-hosted Infinity with existing on-premises infrastructure, allowing enterprises to protect legacy investments or sensitive data while adding modern digital capabilities. On-Premises: The full Infinity stack re-platformed to run in the customer's data center, designed for regulated industries with strict data sovereignty mandates. Key Benefits: True Omnichannel: Unbroken context and orchestration across voice, email, chat, SMS, and outbound touchpoints. Open Architecture: API-first design seamlessly integrates with any CRM, ERP, HRM, or back-office system. Operational Efficiency: Intelligent routing, automated workflows, and smart self-service dramatically reduce handle times and boost first-contact resolution. Continuous Innovation: A microservices foundation ensures zero-downtime upgrades and seamless scalability. Summary: Avaya Contact Center through Avaya Infinity serves mid-market to large enterprises seeking to modernize customer engagement without compromising on architectural control. It is ideal for organizations—particularly those in highly regulated industries—that require true omnichannel orchestration, advanced AI automation, and the flexibility to choose their exact deployment model.

**Average Rating:** 4.1/5.0

**Total Reviews:** 153

#### How Do G2 Users Rate Avaya Contact Center?

- **Has the product been a good partner in doing business?:** 7.9/10 (Category avg: 9.1/10)

#### Who Is the Company Behind Avaya Contact Center?

- **Seller:** [Avaya](https://www.g2.com/sellers/avaya)
- **Year Founded:** 2000
- **HQ Location:** Morristown, NJ
- **Twitter:** @Avaya  
36,704 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=cb7b6b87b0fee52cbc9e0a2fcc8e720949ef23b4dac0afa2a3d3662f9753a20a&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F1494%2F&secure%5Burl_type%5D=linkedin_company_website)  
11,775 employees on LinkedIn®

#### Who Uses This Product?

- **Who Uses This:** Telecom engineer
- **Top Industries:** Telecommunications, Information Technology and Services
- **Company Size:** 52% Large, 34% Medium

#### What Do G2 Reviewers Say About Avaya Contact Center?

_AI-generated summary from verified user reviews_

##### Pros

- Users value the **robust calling features** of Avaya Contact Center, facilitating seamless inbound and outbound communications.
- Users value the **strong analytics capabilities** of Avaya Contact Center for effective voice and reporting management.
- Users appreciate the **call quality** of Avaya Contact Center, noting its strength in enterprise voice and reporting.
- Users value the **seamless connectivity** of Avaya Contact Center, enabling efficient calls from anywhere.
- Users appreciate the **ease of use** of Avaya Contact Center, benefiting from its straightforward features.

##### Cons

- Users find the **complexity in deployment, configurations, and integrations** to be a significant challenge with Avaya Contact Center.
- Users face **customization difficulties** with Avaya Contact Center, complicating deployment, configurations, and integrations.
- Users often face **difficult implementation** challenges with Avaya Contact Center due to its complex deployment and integration processes.
- Users find the **difficult setup** of Avaya Contact Center challenging due to complex deployment and configurations.
- Users often experience **authentication errors and static line issues** that disrupt communication and efficiency.

#### What Are Recent G2 Reviews of Avaya Contact Center?

**["Value for money"](https://www.g2.com/survey_responses/avaya-contact-center-review-11691627)**

**Rating:** 5.0/5.0 stars

_— Gandhi S._

[Read full review](https://www.g2.com/survey_responses/avaya-contact-center-review-11691627)

**["User-Friendly Platform, But Outdated Appearance"](https://www.g2.com/survey_responses/avaya-contact-center-review-11822093)**

**Rating:** 4.0/5.0 stars

_— Athena M._

[Read full review](https://www.g2.com/survey_responses/avaya-contact-center-review-11822093)

### [Puzzel CX Platform](https://www.g2.com/products/puzzel-cx-platform/reviews)

Puzzel is a leading European provider of cloud contact centre solutions, offering a customer-centric, AI-powered CX ecosystem designed to give organisations full control and visibility over the entire customer journey. In a world where contact centres face increasing pressure from agent attrition, rising customer expectations, and growing operational costs, many leaders find themselves stuck with outdated systems and disconnected tools. Puzzel changes that by: \* Unifying Processes \* Centralising Data \* Automating Routine Tasks \* Scaling Flexibly To meet modern customer service demands — helping CX teams deliver faster, more consistent, and more personalised support. Puzzel’s AI-driven platform brings together a powerful set of solutions, including a fully integrated: \* Omnichannel Cloud Contact Centre \* Conversational Intelligence to analyse customer interactions and uncover actionable insights \* Virtual Agents across - Chat - Email - Voice \* Workforce Management to optimise: - Scheduling - Forecasting - Agent engagement We believe in striking the right balance between smart technology and the human touch. Our solutions are built to empower CX teams with the right information, tools and support to work more efficiently, focus their time where it matters most: on the meaningful, high-value conversations that strengthen customer loyalty. With Puzzel, businesses can do more with less. Our customers reduce: \* Manual Admin \* Improve First-Contact Resolution \* Elevate Agent and Customer Experiences Organisations using Puzzel have reported up to 278% ROI, demonstrating the measurable value of smart, scalable, people-focused customer service. Hundreds of organisations across Europe rely on Puzzel to help them simplify operations, support their teams, and deliver better customer experiences every day.

**Average Rating:** 4.6/5.0

**Total Reviews:** 151

#### How Do G2 Users Rate Puzzel CX Platform?

- **Has the product been a good partner in doing business?:** 9.1/10 (Category avg: 9.1/10)
- **Call Routing:** 8.5/10 (Category avg: 8.9/10)
- **Performance Evaluation:** 7.0/10 (Category avg: 8.6/10)
- **Call Monitoring:** 7.2/10 (Category avg: 8.8/10)

#### Who Is the Company Behind Puzzel CX Platform?

- **Seller:** [Puzzel](https://www.g2.com/sellers/puzzel)
- **Company Website:** www.puzzel.com
- **HQ Location:** Alna District, Oslo
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=f3a151c30ae2dad0f49305ff2d60d2cf5b624533213350b418d5b1b954b47904&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F18006024&secure%5Burl_type%5D=linkedin_company_website)  
342 employees on LinkedIn®

#### Who Uses This Product?

- **Top Industries:** Telecommunications, Oil & Energy
- **Company Size:** 51% Medium, 24% Small

#### What Do G2 Reviewers Say About Puzzel CX Platform?

_AI-generated summary from verified user reviews_

##### Pros

- Users praise the **ease of use** of Puzzel CX Platform, highlighting its simple interface and user-friendly call management.
- Users commend Puzzel CX Platform for its **reliable and flexible contact centre solution** , enhancing performance in regulated environments.
- Users praise the **responsive customer support** from Puzzel, highlighting quick assistance that enhances their operational efficiency.
- Users commend the **high efficiency** of Puzzel CX Platform, enabling effective management and insightful performance monitoring.
- Users commend the **user-friendly interface** of Puzzel CX Platform, which effectively balances simplicity with robust functionality.

##### Cons

- Users express concerns about **missing features** , including limited data insights and insufficient customization options for specific needs.
- Users find the **limited customization** options restrict their data insights and affect overall platform effectiveness.
- Users find the **complexity of setup and configuration** challenging, especially with permissions and reporting features.
- Users find the **learning curve challenging** , requiring time to effectively utilize the Puzzel CX Platform's features.
- Users find the **reporting capabilities inadequate** , requiring external tools for effective data analysis and custom reports.

#### What Are Recent G2 Reviews of Puzzel CX Platform?

**["Comprehensive Platform with Room for Improvement"](https://www.g2.com/survey_responses/puzzel-cx-platform-review-13062826)**

**Rating:** 4.0/5.0 stars

_— Verified User_

[Read full review](https://www.g2.com/survey_responses/puzzel-cx-platform-review-13062826)

**["Puzzel: Rapid, flexible deployments that adapt to changing requirements"](https://www.g2.com/survey_responses/puzzel-cx-platform-review-13048747)**

**Rating:** 4.5/5.0 stars

_— Joe T._

[Read full review](https://www.g2.com/survey_responses/puzzel-cx-platform-review-13048747)

### [CallTower](https://www.g2.com/products/calltower/reviews)

Since 2002, CallTower has been at the forefront of transforming global communication, emerging as a leader in enterprise-class cloud communication, collaboration, and CX solutions. We empower businesses with cutting-edge technologies like Microsoft® Teams Operator Connect, Webex by Cisco®, Zoom Phone, and AI-driven contact center solutions, including Webex Contact Center, Five9, and Genesys. Our expertise in contact center solutions enhances CCaaS and CX capabilities, delivering personalized optimization, conversational AI, and advanced analytics to elevate customer experiences and accelerate digital transformation. Driven by innovation and a commitment to excellence, CallTower continues to redefine how businesses connect, collaborate, and thrive on a global scale.

**Average Rating:** 4.3/5.0

**Total Reviews:** 373

#### How Do G2 Users Rate CallTower?

- **Has the product been a good partner in doing business?:** 9.0/10 (Category avg: 9.1/10)
- **Call Routing:** 8.4/10 (Category avg: 8.9/10)
- **Performance Evaluation:** 8.1/10 (Category avg: 8.6/10)
- **Call Monitoring:** 8.2/10 (Category avg: 8.8/10)

#### Who Is the Company Behind CallTower?

- **Seller:** [CallTower](https://www.g2.com/sellers/calltower)
- **Company Website:** calltower.com
- **Year Founded:** 2002
- **HQ Location:** South Jordan, Utah, United States
- **Twitter:** @calltower  
8,987 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=aa9f46b38c421cdb86d6e6d8650fc5c02c6040fd029b80b151e8bf6812e5ab48&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fcalltower%2F&secure%5Burl_type%5D=linkedin_company_website)  
249 employees on LinkedIn®

#### Who Uses This Product?

- **Who Uses This:** IT Manager, IT Director
- **Top Industries:** Information Technology and Services, Manufacturing
- **Company Size:** 61% Medium, 24% Small

#### What Do G2 Reviewers Say About CallTower?

_AI-generated summary from verified user reviews_

##### Pros

- Users highlight the **outstanding customer support** from CallTower, ensuring a seamless onboarding and troubleshooting experience.
- Users find CallTower's **efficient customer service** invaluable, appreciating their professionalism and support for Microsoft offerings.
- Users value the **reliable VoIP and UCaaS services** of CallTower, ensuring seamless communication for business operations.
- Users commend the **ease of use** of CallTower, facilitating efficient self-service and smooth communication for teams.
- Users appreciate the **excellent customer service** of CallTower, noting quick responses and helpful support from real people.

##### Cons

- Users experience **slow and inadequate customer service** , facing delays in support and unresolved issues.
- Users report **billing issues** with CallTower, citing confusion and delays in receiving accurate invoices.
- Users express frustration with **poor customer support** , as assistance is often unhelpful and issues remain unresolved.
- Users find the **lack of intuitiveness** in CallTower's admin portal hinders easy management of DIDs and tasks.
- Users experience **long wait times** for support and hardware, impacting overall satisfaction with CallTower's services.

#### What Are Recent G2 Reviews of CallTower?

**["One-Stop Shop for Seamless Telecom Integration"](https://www.g2.com/survey_responses/calltower-review-12686530)**

**Rating:** 4.5/5.0 stars

_— Antonio F._

[Read full review](https://www.g2.com/survey_responses/calltower-review-12686530)

**["Seamless Transition, Robust Support"](https://www.g2.com/survey_responses/calltower-review-6696569)**

**Rating:** 4.0/5.0 stars

_— Verified User in Non-Profit Organization Management_

[Read full review](https://www.g2.com/survey_responses/calltower-review-6696569)

#### What Are G2 Users Discussing About CallTower?

- [What is CallTower used for?](https://www.g2.com/discussions/what-is-calltower-used-for) - 1 comment

### [telli](https://www.g2.com/products/telli/reviews)

telli is a next-generation call operations platform designed to simplify customer interactions through advanced AI sales agents and auto dialers. This innovative solution leverages human-like voice AI technology to automate complex call workflows, ensuring that every lead is engaged and every customer query is addressed around the clock. By transforming the way businesses interact with their customers, telli enhances operational efficiency and improves customer satisfaction. The platform caters to a diverse range of industries, including Solar & HVAC, Healthcare, Real Estate, Insurance, and Financial Services. Its capabilities are tailored to automate critical stages of the customer journey, making it an invaluable tool for businesses seeking to optimize their communication processes. For instance, telli excels in lead qualification and reactivation, allowing businesses to convert and qualify leads through phone calls and messages, as well as re-engage past customers to recover lost revenue. This targeted approach ensures that no potential opportunity is overlooked. One of the standout features of telli is its 24/7 AI receptionist and customer service capabilities. The platform is designed to answer every call instantly, resolve complex issues, and route calls to the appropriate human agents when necessary. This ensures that customers receive timely assistance, enhancing their overall experience. Additionally, telli simplifies appointment booking by seamlessly scheduling meetings across different time zones, integrating directly with team calendars to streamline the process. telli also offers operational task management, handling payment reminders and upselling opportunities to maximize customer lifetime value. Its ability to initiate calls in under 10 seconds allows businesses to capture lead attention effectively, while warm transfers to sales teams ensure that prospects receive personalized attention when needed. These features collectively contribute to a more efficient sales process and improved customer engagement. Businesses choose telli for its proven performance, reporting significant returns on investment, including a 12% increase in conversion rates, a 53% improvement in reachability, and a 33% boost in booking rates. The platform is known for its rapid implementation, enabling companies to scale their call operations quickly without the burden of establishing a large internal call center. Furthermore, telli prioritizes security and reliability, adhering to high standards of data protection and compliance, ensuring that all interactions remain secure. This combination of features and benefits positions telli as a leading solution in the call operations landscape, empowering businesses to enhance their customer engagement strategies effectively.

**Average Rating:** 4.7/5.0

**Total Reviews:** 21

#### How Do G2 Users Rate telli?

- **Has the product been a good partner in doing business?:** 9.6/10 (Category avg: 9.1/10)

#### Who Is the Company Behind telli?

- **Seller:** [telli technologies](https://www.g2.com/sellers/telli-technologies)
- **Company Website:** www.telli.com
- **Year Founded:** 2024
- **HQ Location:** Berlin
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=d938b78d132c10208537bef2aa7bbdf3cae620444c71ce80299204e0db1c8b7e&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Ftellitechnologies%2F&secure%5Burl_type%5D=linkedin_company_website)  
29 employees on LinkedIn®

#### Who Uses This Product?

- **Company Size:** 33% Medium, 33% Small

#### What Do G2 Reviewers Say About telli?

_AI-generated summary from verified user reviews_

##### Pros

- Users highlight Telli's **quick and effective customer support** , enhancing their experience with intuitive and user-friendly solutions.
- Users find Telli's interface **intuitive and user-friendly** , allowing for efficient management and quick deployment of voice agents.
- Users commend the **intuitive user portal** and responsive customer support that enhance the overall experience with Telli.
- Users commend Telli for its **efficient performance** , enabling quick deployment and seamless interaction with voice AI agents.
- Users commend telli for its **exceptional customer service** and innovative solutions that enhance sales processes effectively.

##### Cons

- Users note that the **dashboard issues** detract from the otherwise strong core functionality of the platform.
- Users find the **difficult reporting** to be basic and lacking polish, impacting overall usability and insights.
- Users face **long delays** due to time zone differences, causing some inconvenience but not hindering overall functionality.
- Users report **long wait times** due to time zone differences, though this rarely hinders their experience with Telli.
- Users feel there are **missing features** in telli, limiting the self-service capabilities available to them.

#### What Are Recent G2 Reviews of telli?

**["Intuitive interface, impressive voice quality, and quick start without IT integration"](https://www.g2.com/survey_responses/telli-review-12470806)**

**Rating:** 5.0/5.0 stars

_— Jeton G._

[Read full review](https://www.g2.com/survey_responses/telli-review-12470806)

**["Super flexible integration and excellent support"](https://www.g2.com/survey_responses/telli-review-12308984)**

**Rating:** 4.5/5.0 stars

_— Christopher H._

[Read full review](https://www.g2.com/survey_responses/telli-review-12308984)

### [Broadvoice](https://www.g2.com/products/broadvoice-broadvoice/reviews)

Broadvoice simplifies communications for small and medium businesses (SMBs) by combining powerful cloud PBX, UC and collaboration features with virtual call center in one award-winning Unified Communications as a Service (UCaaS) platform that delivers enterprise-class features at affordable rates. The platform is connected to Broadvoice’s secure, redundant network and hosting infrastructure, enabling SMBs to connect with customers securely anytime, anywhere and with any device. Broadvoice is ranked in the Deloitte Technology Fast 500 and Inc. 500 Fastest Growing Private Companies in America. 

**Average Rating:** 4.5/5.0

**Total Reviews:** 63

#### How Do G2 Users Rate Broadvoice?

- **Has the product been a good partner in doing business?:** 9.4/10 (Category avg: 9.1/10)

#### Who Is the Company Behind Broadvoice?

- **Seller:** [Broadvoice](https://www.g2.com/sellers/broadvoice)
- **Year Founded:** 2005
- **HQ Location:** Northridge, US
- **Twitter:** @broadvoice  
562 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=b114ad2c55aedf4a2e4c7e435927830fc9c856079d4c2b5a6d024edc791ab570&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F57907&secure%5Burl_type%5D=linkedin_company_website)  
253 employees on LinkedIn®

#### Who Uses This Product?

- **Top Industries:** Information Technology and Services, Hospital & Health Care
- **Company Size:** 59% Small, 27% Medium

#### What Do G2 Reviewers Say About Broadvoice?

_AI-generated summary from verified user reviews_

##### Pros

- Users find Broadvoice **extremely user-friendly** , enjoying its easy app and straightforward interface for seamless communication.
- Users value Broadvoice for its **excellent US-based customer support** , ensuring assistance is readily available when needed.
- Users appreciate the **reliability** of Broadvoice, noting its seamless operation and excellent customer support.
- Users appreciate the **flexibility and convenience** of Broadvoice VoIP services, enhancing communication while working hybrid.
- Users appreciate the **global accessibility** of Broadvoice, enabling seamless communication and collaboration from anywhere.

##### Cons

- Users find the **lack of intuitiveness** in Broadvoice, especially with the mobile app and call flow creation, frustrating.
- Users experience **call connectivity issues** occasionally, with calls cutting off or stalling unexpectedly during conversations.
- Users often face **call quality issues** with Broadvoice, including dropped calls and difficulty in understanding conversations.
- Users find the **call tree setup and customer portal complicated** , impacting their overall experience with Broadvoice.
- Users note the **dependency on internet connectivity** for Broadvoice, which can impact call quality and service reliability.

#### What Are Recent G2 Reviews of Broadvoice?

**["Great Customer Service and Fluent Call Handling"](https://www.g2.com/survey_responses/broadvoice-review-10991686)**

**Rating:** 5.0/5.0 stars

_— Mathew B._

[Read full review](https://www.g2.com/survey_responses/broadvoice-review-10991686)

**["Broadvoice Enhances Mobility with Reliable VoIP"](https://www.g2.com/survey_responses/broadvoice-review-6643620)**

**Rating:** 4.5/5.0 stars

_— Carlton W._

[Read full review](https://www.g2.com/survey_responses/broadvoice-review-6643620)

#### What Are G2 Users Discussing About Broadvoice?

- [What is BroadVoice Cloud PBX used for?](https://www.g2.com/discussions/what-is-broadvoice-cloud-pbx-used-for)

### [Fusion Connect: Modern Connectivity and Communications Solutions](https://www.g2.com/products/fusion-connect-modern-connectivity-and-communications-solutions/reviews)

Fusion Connect, an industry leading cloud communications provider, removes complexity so customers can focus on running their business. We use our technical expertise and industry know-how to build the ‘right-fit’ communications and collaboration solutions for our customers, be it managed connectivity and network access, UCaaS, CCaaS, SD-WAN, managed security, or Microsoft Teams. Fusion Connect, a Morgan Stanley Company, takes a unique customer-first approach to building, implementing, and supporting customized solutions with uptime performance backed by an industry-leading service guarantee.

**Average Rating:** 4.4/5.0

**Total Reviews:** 63

#### How Do G2 Users Rate Fusion Connect: Modern Connectivity and Communications Solutions?

- **Has the product been a good partner in doing business?:** 8.5/10 (Category avg: 9.1/10)
- **Call Routing:** 9.4/10 (Category avg: 8.9/10)
- **Performance Evaluation:** 8.6/10 (Category avg: 8.6/10)
- **Call Monitoring:** 7.5/10 (Category avg: 8.8/10)

#### Who Is the Company Behind Fusion Connect: Modern Connectivity and Communications Solutions?

- **Seller:** [Fusion Connect](https://www.g2.com/sellers/fusion-connect)
- **Company Website:** www.fusionconnect.com
- **Year Founded:** 2003
- **HQ Location:** Atlanta, Georgia, United States
- **Twitter:** @FusionConnectSM  
1,114 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=52bde9c888a0ee5543d8439dc42b2fb85a060e6ad82d4d19bf56cd5ba27287a0&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F63248%2F&secure%5Burl_type%5D=linkedin_company_website)  
1,618 employees on LinkedIn®

#### Who Uses This Product?

- **Top Industries:** Non-Profit Organization Management, Restaurants
- **Company Size:** 37% Small, 33% Medium

#### What Do G2 Reviewers Say About Fusion Connect: Modern Connectivity and Communications Solutions?

_AI-generated summary from verified user reviews_

##### Pros

- Users value the **quick communication and responsive support** from Fusion Connect, enhancing efficiency in their operations.
- Users value the **responsive tech support** of Fusion Connect, appreciating their urgency and professionalism in critical situations.
- Users appreciate the **ease of use** of Fusion Connect, simplifying management with one bill and excellent support.
- Users commend the **reliable connectivity** of Fusion Connect, noting seamless transitions and excellent support from the internal team.
- Users highly value the **excellent customer service** from Fusion Connect, noting fast response times and helpful support.

##### Cons

- Users have experienced **billing issues** with Fusion Connect, though improvements have been made and challenges are decreasing.
- Users often face **poor customer support** , experiencing delayed responses and disconnected information from different teams.
- Users experience **complex processes** with the customer portal and billing, impacting ease of use and efficiency.
- Users report experiencing **connection issues** due to reliance on third-party carriers, leading to delays and frustration.
- Users find Fusion Connect's **customer service lacking** , with disconnected responses and delayed issue resolution impacting their overall experience.

#### What Are Recent G2 Reviews of Fusion Connect: Modern Connectivity and Communications Solutions?

**["Easy Transition with Significant Cost Savings"](https://www.g2.com/survey_responses/fusion-connect-modern-connectivity-and-communications-solutions-review-11873272)**

**Rating:** 5.0/5.0 stars

_— Kevin R._

[Read full review](https://www.g2.com/survey_responses/fusion-connect-modern-connectivity-and-communications-solutions-review-11873272)

**["Fusion Connect always Delivers"](https://www.g2.com/survey_responses/fusion-connect-modern-connectivity-and-communications-solutions-review-11629005)**

**Rating:** 4.5/5.0 stars

_— Nicholas K._

[Read full review](https://www.g2.com/survey_responses/fusion-connect-modern-connectivity-and-communications-solutions-review-11629005)

### [Twilio Flex](https://www.g2.com/products/twilio-twilio-flex/reviews)

Modernize your customer and employee experience in place by embedding voice, SMS, WhatsApp, and email into the apps you already use. Twilio Flex orchestrates interactions across channels, AI-driven automation, and human agents so conversations stay connected and context stays intact. Human agents get a complete view of every interaction without switching between tools or piecing together fragmented data. With a composable architecture and User + Usage pricing, you only pay for what you use and control how you build and scale customer experiences.

**Average Rating:** 4.1/5.0

**Total Reviews:** 31

#### How Do G2 Users Rate Twilio Flex?

- **Has the product been a good partner in doing business?:** 8.3/10 (Category avg: 9.1/10)
- **Call Routing:** 8.3/10 (Category avg: 8.9/10)
- **Performance Evaluation:** 6.7/10 (Category avg: 8.6/10)
- **Call Monitoring:** 6.7/10 (Category avg: 8.8/10)

#### Who Is the Company Behind Twilio Flex?

- **Seller:** [Twilio](https://www.g2.com/sellers/twilio)
- **Year Founded:** 2008
- **HQ Location:** San Francisco, CA
- **Twitter:** @twilio  
81,644 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=3c9f98055e4a813ded4435e17926040455f87f0f05caa8b1303fd97ab3681e53&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Ftwilio-inc-%2F&secure%5Burl_type%5D=linkedin_company_website)  
6,678 employees on LinkedIn®
- **Ownership:** NYSE: TWLO

#### Who Uses This Product?

- **Top Industries:** Information Technology and Services, Insurance
- **Company Size:** 39% Medium, 28% Small

#### What Do G2 Reviewers Say About Twilio Flex?

_AI-generated summary from verified user reviews_

##### Pros

- Users praise the **easy integration** of Twilio Flex with existing tools, enhancing efficiency and customization capabilities.
- Users value the **seamless integrations** in Twilio Flex, enhancing efficiency and customization in their contact center operations.
- Users praise the **seamless chat integration** in Twilio Flex, enhancing efficiency and user experience in contact centers.
- Users praise the **seamless chat integration** in Twilio Flex, enhancing efficiency and user experience within the contact center.
- Users admire the **high customizability** of Twilio Flex, enabling tailored solutions for their specific contact center needs.

##### Cons

- Users find Twilio Flex's **limited features** challenging, requiring extensive customization and technical support for effective use.
- Users find the **missing functionality** in Twilio Flex challenging, needing significant customization and technical support for optimal use.
- Users find Twilio Flex's **complex features** challenging, needing significant technical support and customization for effective implementation.
- Users find Twilio Flex's **complexity** challenging, requiring considerable technical support and customization for effective use.
- Users find that the **complex processes** in Twilio Flex demand extensive technical support and customization efforts.

#### What Are Recent G2 Reviews of Twilio Flex?

**["Twilio Flex: Easy, Cost-Effective Softphone with Helpful Support"](https://www.g2.com/survey_responses/twilio-flex-review-12458273)**

**Rating:** 4.0/5.0 stars

_— Ashton P._

[Read full review](https://www.g2.com/survey_responses/twilio-flex-review-12458273)

**["Versatile and Customizable, but Requires Technical Investment"](https://www.g2.com/survey_responses/twilio-flex-review-5060854)**

**Rating:** 5.0/5.0 stars

_— Verified User in Health, Wellness and Fitness_

[Read full review](https://www.g2.com/survey_responses/twilio-flex-review-5060854)

#### What Are G2 Users Discussing About Twilio Flex?

- [How good is twilio?](https://www.g2.com/discussions/how-good-is-twilio)
- [How much is twilio Flex?](https://www.g2.com/discussions/how-much-is-twilio-flex)
- [What is twilio Flex?](https://www.g2.com/discussions/what-is-twilio-flex)
- [What is twilio flex used for?](https://www.g2.com/discussions/what-is-twilio-flex-used-for)

### [FreJun](https://www.g2.com/products/frejun/reviews)

FreJun is a cloud telephony platform that automates your business calls. Users can make outbound business calls using a unique virtual number and receive inbound calls on the same number. The calls made through the virtual numbers can be recorded and integrated with any workflow tools such as CRM and ATS. Detailed call analytics and AI insights are generated to improve team performance. FreJun also provides a unique Automated calling feature (auto-dialer) where the user can automatically call a list of numbers. By using the FreJun along with your workflow tool, the entire contact system can be automated in 5-10 minutes.

**Average Rating:** 4.8/5.0

**Total Reviews:** 71

#### How Do G2 Users Rate FreJun?

- **Has the product been a good partner in doing business?:** 10.0/10 (Category avg: 9.1/10)
- **Call Routing:** 10.0/10 (Category avg: 8.9/10)
- **Performance Evaluation:** 10.0/10 (Category avg: 8.6/10)
- **Call Monitoring:** 9.7/10 (Category avg: 8.8/10)

#### Who Is the Company Behind FreJun?

- **Seller:** [FreJun](https://www.g2.com/sellers/frejun)
- **Year Founded:** 2019
- **HQ Location:** Seattle, WA
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=ca474a9000ed4b638168e06142179e5d8cdc6f7e66c79209f736a8ba21fff514&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Ffrejun%2F&secure%5Burl_type%5D=linkedin_company_website)  
45 employees on LinkedIn®

#### Who Uses This Product?

- **Top Industries:** Financial Services, Staffing and Recruiting
- **Company Size:** 80% Medium, 20% Small

#### What Are Recent G2 Reviews of FreJun?

**["FreJun Makes Business Calling Simple, Efficient, and Seamlessly CRM-Integrated"](https://www.g2.com/survey_responses/frejun-review-13096048)**

**Rating:** 5.0/5.0 stars

_— Girija P._

[Read full review](https://www.g2.com/survey_responses/frejun-review-13096048)

**["Easy CRM Integration, Powerful Dialing Features, and Wonderful Support"](https://www.g2.com/survey_responses/frejun-review-12780177)**

**Rating:** 5.0/5.0 stars

_— Ayushi S._

[Read full review](https://www.g2.com/survey_responses/frejun-review-12780177)

### [MaxContact](https://www.g2.com/products/maxcontact/reviews)

Make every conversation count – for acquisition, retention & recovery. MaxContact is the AI-powered customer engagement software that helps you turn every customer conversation into a high-impact, revenue-driving moment. We empower your teams to connect smarter, perform better, and scale faster - without losing the human touch. Our cloud-based contact centre platform delivers three core benefits: Revenue-driving performance everywhere it matters. Give your team the power to turn conversations into outcomes with AI automation and insights, intelligent targeting, and predictive dialling that drive scalable revenue. MaxContact helps your agents perform at their best with smarter targeting, automation tools, and AI insights. Move beyond gut feel and make performance scalable with results you can repeat. Our customers achieve 200-300% increases in contact rates, campaign conversion rates that double, and team productivity improvements of +25%. We're so confident in these results that we guarantee measurable performance improvements with the MaxContact Performance Promise. CX that fuels growth. Create customer experiences that boost loyalty, increase conversion, and drive long-term value. Better experiences build better business outcomes, turning service into a revenue stream. Our omnichannel features - covering SMS, WhatsApp, email, web chat, and social - ensures every interaction becomes a value-creating moment. With AI agents handling routine tasks and speech analytics providing intelligence, your team focuses on high-impact customer conversations. Scale with confidence, not compromise. Handle more with less without losing the human touch. Automate intelligently, reduce cost-to-serve, and scale confidently even as volumes rise. Our AI works alongside your team - AI does the heavy lifting while your team focuses on what matters most. From automated dialling to intelligent targeting and AI call summaries, MaxContact future-proofs your operations. What can it do for you? • Drive revenue-driving performance with automated dialling and intelligent targeting • Elevate CX as a commercial lever with omnichannel engagement and AI-powered insights • Scale efficiently with inbound and outbound AI agents that handle the heavy lifting • Ensure OFCOM, GDPR & PCI compliance and security across all customer interactions • Transform operations with real-time dashboards, reporting, conversation intelligence and business insights. You're backed by industry experts & 5-star UK-based support. Ready to make every conversation count? Get in touch to find out more - info@maxcontact.com

**Average Rating:** 4.6/5.0

**Total Reviews:** 60

#### How Do G2 Users Rate MaxContact?

- **Has the product been a good partner in doing business?:** 9.4/10 (Category avg: 9.1/10)
- **Call Routing:** 9.2/10 (Category avg: 8.9/10)
- **Performance Evaluation:** 10.0/10 (Category avg: 8.6/10)
- **Call Monitoring:** 10.0/10 (Category avg: 8.8/10)

#### Who Is the Company Behind MaxContact?

- **Seller:** [MaxContact](https://www.g2.com/sellers/maxcontact)
- **HQ Location:** Manchester, England, United Kingdom
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=9e4902b744548f5d224664cd1b82956d75bdbdc2c678c9716859edc7d1051559&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fmax-contact&secure%5Burl_type%5D=linkedin_company_website)  
66 employees on LinkedIn®

#### Who Uses This Product?

- **Top Industries:** Financial Services, Insurance
- **Company Size:** 52% Medium, 40% Small

#### What Do G2 Reviewers Say About MaxContact?

_AI-generated summary from verified user reviews_

##### Pros

- Users appreciate the **attentive and fast customer support** from MaxContact, enhancing their campaign management experience.
- Users commend the **exceptional support** of MaxContact, highlighting the team's friendliness and effective assistance.
- Users find MaxContact incredibly **easy to use** , with quick setup and exceptional customer support enhancing their experience.
- Users highlight the **efficiency** of MaxContact, allowing for streamlined workflows and faster customer response times.
- Users praise the **reliability** of MaxContact, noting exceptional support and impressive results in performance improvements.

##### Cons

- Users find the **complex reporting** features overwhelming, advocating for simpler and more customizable options.
- Users note the **missing features** in MaxContact, like webchat and flexible reporting, limiting their overall experience.
- Users struggle with **customization difficulty** , wishing for more flexibility in tailoring reports to their needs.
- Users find the **reporting overly complicated** and difficult to navigate, affecting the ease of accessing relevant information.
- Users find the **difficult reporting** to be overly complicated and wish for simpler navigation and bespoke options.

#### What Are Recent G2 Reviews of MaxContact?

**["Powerful Support, User Friendly - But Sluggish at Times"](https://www.g2.com/survey_responses/maxcontact-review-10821172)**

**Rating:** 4.0/5.0 stars

_— Conor B._

[Read full review](https://www.g2.com/survey_responses/maxcontact-review-10821172)

**["Powerful Platform for Managing Data and Campaigns"](https://www.g2.com/survey_responses/maxcontact-review-10834530)**

**Rating:** 5.0/5.0 stars

_— Lucy ._

[Read full review](https://www.g2.com/survey_responses/maxcontact-review-10834530)

### [Revenue.io](https://www.g2.com/products/revenue-io/reviews)

Revenue.io is a Salesforce-native revenue platform that unifies sales engagement, sales dialer, conversation intelligence, sales enablement, revenue intelligence, and real-time coaching in a single system. Unlike standalone tools that sit outside the CRM and sync data back later, Revenue.io operates directly inside Salesforce. Every call, email, meeting, and engagement signal is captured and recorded in the CRM in real time. The platform is designed to improve sales execution while preserving Salesforce as the system of record. Learn more at www.revenue.io.

**Average Rating:** 4.7/5.0

**Total Reviews:** 570

#### How Do G2 Users Rate Revenue.io?

- **Has the product been a good partner in doing business?:** 9.6/10 (Category avg: 9.1/10)
- **Call Routing:** 9.0/10 (Category avg: 8.9/10)
- **Performance Evaluation:** 9.7/10 (Category avg: 8.6/10)
- **Call Monitoring:** 9.8/10 (Category avg: 8.8/10)

#### Who Is the Company Behind Revenue.io?

- **Seller:** [Revenue.io](https://www.g2.com/sellers/revenue-io)
- **Year Founded:** 2012
- **HQ Location:** Los Angeles, CA
- **Twitter:** @revenue\_io  
4,277 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=b404a0f03710cafe3c17b2b174bc161c987bd00d9d9b1a15a504eeef1f23cdfc&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F2625815%2F&secure%5Burl_type%5D=linkedin_company_website)  
102 employees on LinkedIn®

#### Who Uses This Product?

- **Who Uses This:** Customer Service Representative, Account Executive
- **Top Industries:** Computer Software, Financial Services
- **Company Size:** 59% Medium, 22% Small

#### What Do G2 Reviewers Say About Revenue.io?

_AI-generated summary from verified user reviews_

##### Pros

- Users praise the **exceptional customer support** from Revenue.io, delivering fast, friendly, and effective assistance whenever needed.
- Users find Revenue.io **very easy to use and intuitive** , streamlining workflows and enhancing team productivity effortlessly.
- Users commend the **exceptional support** from Revenue.io, with responsive, friendly assistance enhancing their experience significantly.
- Users highlight the **easy setup process** with Revenue.io, enjoying seamless implementation and exceptional support from the team.
- Users value the **seamless Salesforce integration** , which enhances efficiency and minimizes admin work in sales operations.

##### Cons

- Users experience **call issues** like headset disconnections and challenges tracking call history, affecting usability during meetings.
- Users desire **missing advanced features** in Revenue.io, including AI enhancements and better support communication options.
- Users find the **limited features** of Revenue.io restrict their integration options and overall mobile experience.
- Users face **connection issues** with Revenue.io, experiencing dropped calls and unreliable mobile functionality.
- Users experience **dialer issues** , such as trouble locating calls and tracking recent contacts efficiently.

#### What Are Recent G2 Reviews of Revenue.io?

**["Empowers Sales with Easy Call Review and Coaching"](https://www.g2.com/survey_responses/revenue-io-review-13020882)**

**Rating:** 5.0/5.0 stars

_— Angelique G._

[Read full review](https://www.g2.com/survey_responses/revenue-io-review-13020882)

**["Effortless Sales Automation with Salesforce Integration"](https://www.g2.com/survey_responses/revenue-io-review-12801480)**

**Rating:** 4.5/5.0 stars

_— Alex M._

[Read full review](https://www.g2.com/survey_responses/revenue-io-review-12801480)

#### What Are G2 Users Discussing About Revenue.io?

- [What is Revenue.io used for?](https://www.g2.com/discussions/revenue-io-what-is-revenue-io-used-for)
- [What is Revenue.io used for?](https://www.g2.com/discussions/what-is-revenue-io-used-for)

### [Zingtree](https://www.g2.com/products/zingtree/reviews)

Agentic AI Workflow Orchestration for Complex CX. Zingtree is the agentic workflow orchestration platform for complex, high-risk CX. Zingtree’s enterprise-grade workflow automation platform empowers CX, support, and operations leaders to safely automate and resolve even the most challenging contact center requests. Our multi-layered AI guardrail approach delivers 30-40% increases in customer satisfaction (CSAT), First Contact Resolution (FCR), and revenue, all with full confidence that every action and answer is right. Our customers across Financial Services, Healthcare, Consumer Products, Software & Services, and many more, see up to: - 30% boosts in customer satisfaction (CSAT) - 40% increases in revenue - 30% increases in First Contact Resolution (FCR) - 12X increases in deflections - 85% reductions in agent ramp time - 70% reductions in contact center costs

**Average Rating:** 4.6/5.0

**Total Reviews:** 98

#### How Do G2 Users Rate Zingtree?

- **Has the product been a good partner in doing business?:** 9.1/10 (Category avg: 9.1/10)
- **Call Routing:** 8.2/10 (Category avg: 8.9/10)
- **Performance Evaluation:** 8.6/10 (Category avg: 8.6/10)
- **Call Monitoring:** 7.2/10 (Category avg: 8.8/10)

#### Who Is the Company Behind Zingtree?

- **Seller:** [Zingtree](https://www.g2.com/sellers/zingtree)
- **Company Website:** zingtree.com
- **Year Founded:** 2020
- **HQ Location:** San Francisco, US
- **Twitter:** @zingtree  
251 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=168c77ec65fb483a0289e7fa4f1016fb17b726a910dc4e016be1241bdd9be9e6&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F1093555&secure%5Burl_type%5D=linkedin_company_website)  
41 employees on LinkedIn®

#### Who Uses This Product?

- **Top Industries:** Consumer Services, Financial Services
- **Company Size:** 46% Medium, 27% Small

#### What Do G2 Reviewers Say About Zingtree?

_AI-generated summary from verified user reviews_

##### Pros

- Users find Zingtree to be **simple and easy to use** , significantly aiding their troubleshooting and response consistency.
- Users find Zingtree **intuitive** , simplifying complex workflows and enhancing the efficiency of call center operations.
- Users find Zingtree **incredibly helpful** for creating interactive decision trees that enhance customer support and efficiency.
- Users praise the **versatile integration options** of Zingtree, enhancing workflow efficiency across various business processes.
- Users love the **code-free design** of Zingtree, making it easy for non-coders to create effective workflows.

##### Cons

- Users highlight the **missing features** in Zingtree, particularly regarding logic capabilities and AI functionality.
- Users find the **learning curve challenging** , especially when navigating the back end and handling form data reports.
- Users note the **limited options** for customization and shared content management, impacting usability across different markets.
- Users find **limited customization** options in Zingtree, which restricts its adaptability for varied use cases.
- Users find the **reporting issues** frustrating, as the analytics lack detail and clarity, making insights difficult to obtain.

#### What Are Recent G2 Reviews of Zingtree?

**["Intuitive Decision Trees and Strong Integrations That Streamline Agent Workflows"](https://www.g2.com/survey_responses/zingtree-review-12696956)**

**Rating:** 4.5/5.0 stars

_— Matt C._

[Read full review](https://www.g2.com/survey_responses/zingtree-review-12696956)

**["Visual Tree Builder Makes Troubleshooting Flows Fast and Clickable"](https://www.g2.com/survey_responses/zingtree-review-13094793)**

**Rating:** 5.0/5.0 stars

_— Tymian M._

[Read full review](https://www.g2.com/survey_responses/zingtree-review-13094793)

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Similar Categories

- [Contact Center](/categories/contact-center)
- [Contact Center AI Observability](/categories/contact-center-ai-observability)

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- [Contact Center Workforce](/categories/contact-center-workforce)
- [Speech Analytics](/categories/speech-analytics)

[Browse Call Center Infrastructure (CCI) Themes](/categories/call-center-infrastructure-cci/themes)

 ![Inia Debnath](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Inia Debnath")
ID

Researched and written by [Inia Debnath](https://research.g2.com/insights/author/inia-debnath)

Updated October 3, 2024

Call center infrastructure (CCI), also known as contact center infrastructure, provides solutions required to establish and operate a call center. CCI software helps businesses create an efficient call or contact center to help them stay connected with their customers. CCI is most commonly used by customer-facing teams to manage inbound and outbound communications, but it also includes features for managing operations or back-office tasks like workflow management, employee monitoring, and measuring productivity.

While historically CCI was designed to be deployed on premises, emerging technologies in cloud infrastructure have allowed for the design and deployment of cloud call centers. The products in this category offer a full-fledged cloud-hosted infrastructure solution with features like call routing, call recording and monitoring, automatic call distribution (ACD), and interactive voice response (IVR). Local area network (LAN) and [VoIP providers](https://www.g2.com/categories/voip) are examples of some software providers that also offer solutions to establish infrastructure for network connectivity of contact centers. Depending on the provider and the membership plan, a variety of other features may be available in a CCI package. CCI products frequently integrate with [CRM software](https://www.g2.com/categories/crm).

To qualify for inclusion in the Call Center Infrastructure (CCI) category, a product must:

- Distribute incoming calls or manage phone number assignment for outbound centers
- Manage and store data related to calls, customers, and agents
- Provide a comprehensive infrastructure solution which includes call management, placement, routing, recording, and analytics
- Enable managers to track and monitor calls
- Include the following features: automatic call distributor, universal communications, interactive voice response, universal queue management, and computer telephony integrations (CTI)

Show More