# Best UCaaS Platforms - Page 9

## How Many UCaaS Platforms Products Does G2 Track?

**Total Products under this Category:** 228

### Category Stats (Aug 2026)

- **Average Rating:** 4.36/5 (↑0.01 vs Jul 2026) 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 UCaaS Platforms Products?

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

- 30 Analysts and Data Experts
- 98,900+ Authentic Reviews
- 228+ 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 UCaaS Platforms
 ![G2 Grid® for UCaaS Platforms plotting products by satisfaction and market presence](https://www.g2.com/categories/ucaas-platforms/grids.png?focus%5B%5D=7372&focus%5B%5D=18255&focus%5B%5D=53495&focus%5B%5D=1173&focus%5B%5D=70977&focus%5B%5D=71595&focus%5B%5D=16314&focus%5B%5D=1332029)

Highlighted products: Zoom Workplace, Webex Suite, Nextiva, RingEX, Webex Calling, 8x8 Work, Dialpad Connect, and Dialaxy.

Underlying data: [Grid® JSON](https://www.g2.com/categories/ucaas-platforms/grids.json?focus%5B%5D=zoom-workplace&focus%5B%5D=cisco-webex-suite&focus%5B%5D=nextiva&focus%5B%5D=ringex&focus%5B%5D=webex-calling&focus%5B%5D=8x8-work&focus%5B%5D=dialpad-connect&focus%5B%5D=dialaxy)

**Sponsored**

### Ultatel

Ultatel is an intelligent cloud communications platform that brings AI into everyday business conversations across calling, meetings, messaging, and customer interactions. With 50+ advanced features, Ultatel brings all your business communications into one powerful platform built to support organizations at scale. From AI meeting assistant tools that automatically capture summaries and action items, to Intelligent Voice AI Agents that help automate repetitive workflows, Ultatel is designed to help teams communicate more efficiently and stay focused on what matters most. With integrated calling, collaboration, Microsoft Teams connectivity, CRM integrations, and 24/7 live support, Ultatel delivers a modern communications experience built for growing businesses.

[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=1771&secure%5Bchosen_at%5D=2026-08-12T16%3A55%3A03Z&secure%5Bdisplayable_resource_id%5D=1771&secure%5Bdisplayable_resource_type%5D=Category&secure%5Bmedium%5D=sponsored&secure%5Bplacement_reason%5D=page_category&secure%5Bplacement_resource_ids%5D%5B%5D=1771&secure%5Bprioritized%5D=false&secure%5Bproduct_id%5D=1206636&secure%5Bresource_id%5D=1771&secure%5Bresource_type%5D=Category&secure%5Bsource_type%5D=category_page&secure%5Bsource_url%5D=https%3A%2F%2Fwww.g2.com%2Fcategories%2Fucaas-platforms%3Fonlycontent%3D1%26optimizely_user_id%3Da916f6f81cd61f75eb1d87620d9ab0df%26page%3D9&secure%5Btoken%5D=50170a0b169fb9c180efa97270cb3967197d8d68a001c86879900cc9e4e88e6b&secure%5Burl%5D=https%3A%2F%2Fwww.ultatel.com%2Fcloud-based-phone-system%2F%3Futm_source%3DG2&secure%5Burl_type%5D=custom_url)

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

AllCloud IP offers businesses a full suite of enterprise voice and data applications without the enterprise cost. With over 12 years of voice and data cloud experience and a hands-on approach AllCloud IP customers can rest assured the vital components of their business will continue to run no matter what the world throws at them. With the world of technology ever changing AllCloud IP understands that there is no one size fits all, with that AllCloud IP prides itself with having access to a long list of carriers and partners to ensure the end user is getting the best possible service at the best possible price as well as having one point of contact to bring it all together. With our approach customers can take full advantage of their private cloud to bring out the best of their products and people weather its business continuity for uptime or unified communications such as VOIP or messaging to bring everyone together and everything in between to collaborate. AllCloud IP stands above the rest with ability to remain fluid in a moving world.

#### Who Is the Company Behind AllCloudIP?

- **Seller:** [AllCloud IP](https://www.g2.com/sellers/allcloud-ip)
- **HQ Location:** Indianapolis, US
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=d2e802b878e7c15244ccc51cdcb13ac5495d33d6eaf5201345e93b2a9ef18385&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F49141997&secure%5Burl_type%5D=linkedin_company_website)  
3 employees on LinkedIn®

### [Allied Telecom](https://www.g2.com/products/allied-telecom/reviews)

Allied is a unified communications provider offering voice, data, and internet service solutions.

#### Who Is the Company Behind Allied Telecom?

- **Seller:** [Allied Telecom Group](https://www.g2.com/sellers/allied-telecom-group)
- **Year Founded:** 1990
- **HQ Location:** Arlington, Virginia, United States
- **Twitter:** @ALLIEDTELECOM  
3,900 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=0e1a01d8f82b8853e5c23b50be8e55d19f6d407535c316a2ba40599ca96f1255&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fallied-telecom-group%2F&secure%5Burl_type%5D=linkedin_company_website)  
66 employees on LinkedIn®

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

Anveo offers a communication platform for Voice and Data Integration services.

**Average Rating:** 4.5/5.0

**Total Reviews:** 2

#### How Do G2 Users Rate Anveo?

- **Has the product been a good partner in doing business?:** 10.0/10 (Category avg: 8.9/10)

#### Who Is the Company Behind Anveo?

- **Seller:** [Anveo](https://www.g2.com/sellers/anveo)
- **Year Founded:** 2006
- **HQ Location:** Feasterville, US
- **Twitter:** @anveo\_com  
82 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=dd4ee4632adf0ec6c03517ca6985b5d8fcd9f17783043ed07299a911f28d1af9&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fanveo%2F&secure%5Burl_type%5D=linkedin_company_website)  
8 employees on LinkedIn®

#### Who Uses This Product?

- **Company Size:** 100% Small

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

_AI-generated summary from verified user reviews_

##### Pros

- Users value the **convenient all-in-one platform** of Anveo for managing calls, faxes, and voice emails easily.
- Users value the **cost efficiency** of Anveo, appreciating its low price and straightforward setup process.
- Users value the **good customer support** provided by Anveo, ensuring a positive experience with the service.
- Users find the **easy setup** of Anveo beneficial, making configuration and sign-up straightforward.
- Users value the **reliable service** of Anveo, highlighting its consistent performance and dependable support.

##### Cons

- Users feel that Anveo lacks **advanced features** like call forwarding and security, limiting regular usage of the platform.

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

**["Smart way to make and receive international call for the business"](https://www.g2.com/survey_responses/anveo-review-8472495)**

**Rating:** 4.0/5.0 stars

_— Balamurugan D._

[Read full review](https://www.g2.com/survey_responses/anveo-review-8472495)

**["Long-term customer: very happy"](https://www.g2.com/survey_responses/anveo-review-8457254)**

**Rating:** 5.0/5.0 stars

_— Verified User in Manufacturing_

[Read full review](https://www.g2.com/survey_responses/anveo-review-8457254)

### [Atlantech Online](https://www.g2.com/products/atlantech-online/reviews)

Atlantech Online, Inc. is a leading public utility that operates in Maryland, Virginia and the District of Columbia, offering a range of top-quality fiber, telephone, and data center services to both business and government organizations. In addition, Atlantech also offers fiber and telephone services throughout the United States. With its headquarters situated in Silver Spring, MD, Atlantech is committed to providing its customers with exceptional service and state-of-the-art technology. At the heart of Atlantech's operation is its core fiber network that links its data centers and connects to more than 300 major office buildings throughout the Washington, DC region. The company's range of services includes high-speed internet service, cloud connectivity, MPLS, and other data networking solutions, telephone service, and colocation in its wholly owned and operated data centers. Atlantech's cutting-edge services are designed to meet the unique needs of its customers, whether they require high-speed internet for their business operations or cloud connectivity to streamline their data storage and management. The company's telephone services, including Microsoft Teams Calling (Operator Connect, Direct Routing and Direct Routing for GCC High) SIP Trunking, hosted PBX, UCaaS, PRI, POTS Line Replacement, and call center services are tailored to meet the specific needs of business and government. In addition to its extensive range of services, Atlantech boasts a multi-terabit per second fiber backbone that can support a wide variety of solutions as its customers' networks evolve. This scale ensures that Atlantech can continue to meet its customers' changing needs well into the future. For those interested in learning more about Atlantech Online and its services, additional information can be found at www.atlantech.net, or by contacting the company directly at 800-256-1612.

**Average Rating:** 5.0/5.0

**Total Reviews:** 2

#### How Do G2 Users Rate Atlantech Online?

- **Has the product been a good partner in doing business?:** 10.0/10 (Category avg: 8.9/10)

#### Who Is the Company Behind Atlantech Online?

- **Seller:** [Atlantech Online](https://www.g2.com/sellers/atlantech-online)
- **Year Founded:** 1995
- **HQ Location:** Silver Spring, US
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=0e31edc762bd137a6f1286db820f26eb91418b3422bd1d96a555a8d8d10dbdeb&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fatlantech-online&secure%5Burl_type%5D=linkedin_company_website)  
49 employees on LinkedIn®

#### Who Uses This Product?

- **Company Size:** 50% Medium, 50% Small

#### What Do G2 Reviewers Say About Atlantech Online?

_AI-generated summary from verified user reviews_

##### Pros

- Users praise Atlantech Online for their **exceptional customer support** , ensuring seamless transitions and top-notch service quality.
- Users praise Atlantech Online for their **exceptional reliability** and seamless support during complex transitions.
- Users commend Atlantech Online for their **exceptional security and compliance** during critical migrations to secure environments.
- Users commend Atlantech for their **excellent communication and responsiveness** during the smooth transition to Microsoft Teams.
- Users commend the **convenience** of Atlantech's seamless transition, ensuring smooth operations without disruptions to communications.

#### What Are Recent G2 Reviews of Atlantech Online?

**["Flawless Zoom Gov to Teams Migration—Exceptional Support and Security"](https://www.g2.com/survey_responses/atlantech-online-review-11955899)**

**Rating:** 5.0/5.0 stars

_— Joel T._

[Read full review](https://www.g2.com/survey_responses/atlantech-online-review-11955899)

**["Best-in-Class Technical Support and Top Notch Data Center Hosting"](https://www.g2.com/survey_responses/atlantech-online-review-12366736)**

**Rating:** 5.0/5.0 stars

_— Michael W._

[Read full review](https://www.g2.com/survey_responses/atlantech-online-review-12366736)

### [Auvious Videο Counselor](https://www.g2.com/products/auvious-vide-counselor/reviews)

Auvious is a multi-purpose, multi-industry, unified communications platform. The direct result of our persistent efforts to solve complex problems in the field of communications through innovative simple solutions, common in large organizations and enterprises.

#### Who Is the Company Behind Auvious Videο Counselor?

- **Seller:** [Auvious](https://www.g2.com/sellers/auvious)
- **Year Founded:** 2016
- **HQ Location:** Paralimni, CY
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=5c8030aea680828d054329f250719006a0f2dc0cf5cc4c6e3f2fefec923b9297&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fauvious&secure%5Burl_type%5D=linkedin_company_website)  
9 employees on LinkedIn®

### [Banx VoIP](https://www.g2.com/products/banx-voip/reviews)

Banx VoIP offers a comprehensive Voice over Internet Protocol service designed to replace traditional landline systems, enabling businesses to make and receive calls over high-speed internet connections. This transition not only reduces costs associated with conventional phone systems but also introduces a suite of advanced features that enhance communication efficiency and flexibility. Banx supports the 2talk platform, ensuring reliability and stability comparable to major telecom providers. Additionally, Banx specializes in the deployment of 3CX and Yeastar Cloud PBX systems, providing scalable and secure solutions tailored to diverse business needs. , [banx.net.nz] Key Features and Functionality: - Advanced Call Routing and Interactive Voice Response : Direct incoming calls to appropriate departments or individuals using customizable menus, improving customer experience and operational efficiency. - Voicemail and Call Recording: Access voicemails for each phone line and utilize call recording for accountability, quality assurance, and training purposes. - Call Redirection and Advanced Routing: Easily reroute calls to voicemail or emergency numbers during holidays or after hours, ensuring continuous business operations. - Multiple Direct-Dial Numbers: Assign up to five direct-dial numbers in the basic plan, allowing employees to have individual extensions for direct customer contact. - Softphone Integration: Replace traditional desk phones with softphone applications on PCs or smartphones, enabling call management from any location and supporting remote work environments. - Unified Communications: Beyond voice calls, Banx VoIP supports audio and video calls, real-time team availability status, video meetings with chat and screen sharing, and instant messaging with file sharing capabilities. - Security and Backup: Features include automatic detection and blacklisting of SIP attack tools, global IP blacklist updates, encrypted traffic via the 3CX Tunnel, and automatic failover for instant backup. Primary Value and Solutions Provided: Banx VoIP addresses the limitations of traditional telephony by offering a cost-effective, feature-rich communication solution that leverages existing internet infrastructure. Businesses benefit from reduced operational costs, enhanced call management capabilities, and the flexibility to support remote work setups. The integration of advanced PBX systems like 3CX and Yeastar Cloud ensures scalability and security, catering to the evolving needs of modern enterprises. By adopting Banx VoIP, organizations can streamline their communication processes, improve customer interactions, and adapt to dynamic business environments with ease. , [banx.net.nz]

#### Who Is the Company Behind Banx VoIP?

- **Seller:** [Banxware](https://www.g2.com/sellers/banxware)
- **Year Founded:** 2020
- **HQ Location:** Berlin, DE
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=ee44471ea6f513390f61e9a46c521baf52a396906f8600ca37f6d99225a34cb5&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fbanxware%2F&secure%5Burl_type%5D=linkedin_company_website)  
60 employees on LinkedIn®

### [Basicvoice.nl](https://www.g2.com/products/basicvoice-nl/reviews)

Hosted PBX all inclusive

#### Who Is the Company Behind Basicvoice.nl?

- **Seller:** [basicVoice](https://www.g2.com/sellers/basicvoice)
- **HQ Location:** N/A
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=7886df2ed926834e5eb248c77dcfa8e5c815d3ab1f0fe3132ced0dba45868834&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2FNo-Linkedin-Presence-Added-Intentionally-By-DataOps&secure%5Burl_type%5D=linkedin_company_website)  
1 employees on LinkedIn®

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

BlueRockTEL started as a telecom billing solution. Today it is a complete BSS platform, shaped by over a decade of real operational experience alongside telecom and cloud operators.

#### Who Is the Company Behind BlueRockTEL?

- **Seller:** [BlueRockTEL](https://www.g2.com/sellers/bluerocktel)
- **Year Founded:** 2017
- **HQ Location:** Dublin, IE
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=caa9ff359c559837618659c130598f6d041ee54142e7922782fc851affa6f58c&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fbluerocktel%2F&secure%5Burl_type%5D=linkedin_company_website)  
3 employees on LinkedIn®

### [BluIP Cloud UC](https://www.g2.com/products/bluip-cloud-uc/reviews)

Unified Communications as a Service (UCaaS) Delivering enterprise-grade voice, video, messaging, and collaboration Cloud Telephony Products We offer a comprehensive suite of services including Cloud PBX, a feature-rich virtual phone system, SIP Trunking for seamless integration with your existing infrastructure, and direct PSTN calling for both Microsoft Teams and Webex. This powerful combination empowers your teams to collaborate and connect effortlessly, regardless of location or platform. Cloud PBX Enhanced SIP Trunking BluIP Connect with Webex Microsoft Operator Connect Enhanced Cloud Calling for Microsoft Teams WebRTC Console

#### Who Is the Company Behind BluIP Cloud UC?

- **Seller:** [BluIP](https://www.g2.com/sellers/bluip)
- **Year Founded:** 2011
- **HQ Location:** Las Vegas, US
- **Twitter:** @BluIPinc  
556 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=391a90426d513f67e1a4d03aab2ab917f3e1f3deaa82634ccf609f7e5707cc93&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fbluip%2F&secure%5Burl_type%5D=linkedin_company_website)  
78 employees on LinkedIn®

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

XBP provides communication software solutions for administrator portal, call conference, auto attendant, virtual office, etc.

**Average Rating:** 4.5/5.0

**Total Reviews:** 1

#### Who Is the Company Behind BroadVoice?

- **Seller:** [XBP](https://www.g2.com/sellers/xbp)
- **HQ Location:** N/A
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=7886df2ed926834e5eb248c77dcfa8e5c815d3ab1f0fe3132ced0dba45868834&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2FNo-Linkedin-Presence-Added-Intentionally-By-DataOps&secure%5Burl_type%5D=linkedin_company_website)  
1 employees on LinkedIn®

#### Who Uses This Product?

- **Company Size:** 100% Medium

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

_AI-generated summary from verified user reviews_

##### Pros

- Users value the **integrated communication tools** of BroadVoice, enhancing convenience and efficiency in their business operations.
- Users value the **integrated communication tools** of BroadVoice for efficient meeting management and streamlined conference calls.
- Users love the **integrated communication tools** in BroadVoice, enhancing their experience with conference calls and virtual services.
- Users praise BroadVoice for its **integrated communication tools** , highlighting features like admin panel and virtual services.

##### Cons

- Users find the **interface confusing** due to the overwhelming list of options, making it hard to find specific features.
- Users often find the **navigation difficult** , struggling with a confusing interface and a large list of options.

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

**["Centralized control and configuration of all communication features"](https://www.g2.com/survey_responses/broadvoice-review-10394358)**

**Rating:** 4.5/5.0 stars

_— Siwapong R._

[Read full review](https://www.g2.com/survey_responses/broadvoice-review-10394358)

### [Business Telecom Services](https://www.g2.com/products/business-telecom-services/reviews)

Opus offers a complete suite of connectivity solutions, from business lines and calls, through to high speed broadband, Ethernet First Mile, Generic Ethernet Access, Fibre Leased Lines and MPLS/VPLS circuits.

**Average Rating:** 4.0/5.0

**Total Reviews:** 1

#### Who Is the Company Behind Business Telecom Services?

- **Seller:** [Opus Telecoms](https://www.g2.com/sellers/opus-telecoms)
- **HQ Location:** Farnham
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=ba1079a7054761545653d5bd0c7e6a547e04381faf76520d71c4ef0088c7bfc0&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fopus-telecom-limited&secure%5Burl_type%5D=linkedin_company_website)  
2 employees on LinkedIn®

#### Who Uses This Product?

- **Company Size:** 100% Small

#### What Are Recent G2 Reviews of Business Telecom Services?

**["Fast and reliable wifi"](https://www.g2.com/survey_responses/business-telecom-services-review-8491805)**

**Rating:** 4.0/5.0 stars

_— Pardeep D._

[Read full review](https://www.g2.com/survey_responses/business-telecom-services-review-8491805)

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

bvoip (www.bvoip.com) helps IT and Managed Service Providers attack voice and unified communications worldwide. Having come out of the MSP space, bvoip designed its program to not only automate how MSP’s interact with their existing systems and tools but to also assist MSP’s with an offering to standardize their Unified Communications offering to their customers. bvoip is currently available in North America, Europe, and the Australian / New Zealand Regions.

#### Who Is the Company Behind BVoIP?

- **Seller:** [BVoIP](https://www.g2.com/sellers/bvoip)
- **Year Founded:** 2014
- **HQ Location:** Hatfield, US
- **Twitter:** @bvoipllc  
1,870 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=8bff56ff98863efe77b53175f1f51e989b14c87d397031378ccf84d3dae1ff36&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fbvoip&secure%5Burl_type%5D=linkedin_company_website)  
11 employees on LinkedIn®

### [C4](https://www.g2.com/products/continuant-c4/reviews)

C4 is a flexible, cloud-based Customer Experience (CX) solution designed for businesses that want powerful features without the complexity of legacy platforms. With C4, you get everything you need to run a high-performing contact center—voice, digital channels, intelligent routing, reporting, and integrations—delivered through a platform that’s easy to customize and fast to deploy. Unlike traditional CCaaS platforms, C4 is agile by design. That means quick deployments, responsive support, and the ability to request and implement custom API functionality without the wait. Users have more self-service control over configuration, workflows, and reporting—reducing dependency on IT or vendor support. Whether you’re a small team scaling up or a large enterprise looking for a more nimble alternative, C4 offers enterprise-grade capabilities with startup-level flexibility.

#### Who Is the Company Behind C4?

- **Seller:** [Continuant](https://www.g2.com/sellers/continuant)
- **Year Founded:** 1996
- **HQ Location:** Fife, Washington, United States
- **Twitter:** @Continuant  
721 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=0ce0039b3b30cd9a4329348dab7e154894795f822f65d020983ddef91967d17e&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fcontinuant%2F&secure%5Burl_type%5D=linkedin_company_website)  
345 employees on LinkedIn®

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

CallsAround is a 24/7 AI answering service with emergency dispatch for home-service businesses (restoration, HVAC, plumbing, electrical, cleaning). It answers every call with a natural-sounding, configurable AI receptionist, qualifies leads, answers FAQs, and books appointments against your live Google Calendar. When a call is a real emergency, CallsAround doesn't take a message - it dispatches. It rings your on-call chain in order, detects answering machines (voicemail never counts as an answer), sends SMS alerts at every escalation hop, and warm-transfers with context so your tech knows who's calling and why before they pick up. Carrier-level dead-man failover tests the line every few minutes and routes around upstream outages, so callers never reach dead air. Every call is on the record: recordings, transcripts, and a journaled escalation trail. Setup is instant and self-serve - live the same afternoon, no demo call, no onboarding project - with flat month-to-month pricing and no contracts.

#### Who Is the Company Behind CallsAround?

- **Seller:** [TetraCore](https://www.g2.com/sellers/tetracore-2026-07-29)
- **Year Founded:** 2025
- **HQ Location:** N/A
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=546bebe82ec33289b4db22970ef167c361b476238e6b999de435c9ede4c3e01b&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Ftetracorehq&secure%5Burl_type%5D=linkedin_company_website)  
1 employees on LinkedIn®

### [CallSwitch One](https://www.g2.com/products/callswitch-one/reviews)

CallSwitch One is our industry-leading unified communications platform. Underpinned by a powerful VoIP telephony system, CallSwitch One includes a range of advanced call handling and management features, alongside chat, presence, document sharing and more. All of this can be managed centrally through our secure administration dashboard, and deployed through proprietary mobile, desktop, and web applications.

#### Who Is the Company Behind CallSwitch One?

- **Seller:** [Nebula Cloud](https://www.g2.com/sellers/nebula-cloud-2026-07-18)
- **Year Founded:** 2015
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=22a008617e0f98520f1fe06a911012cd62a7cbd0bf143f1ddcc5ca0df07f431c&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fnebulacloudltd&secure%5Burl_type%5D=linkedin_company_website)  
58 employees on LinkedIn®

#### Who Uses This Product?

- **Company Size:** 100% Medium

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[Browse UCaaS Platforms Themes](/categories/ucaas-platforms/themes)

 ![Neeraja Prakash](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Neeraja Prakash")
NP

Researched and written by [Neeraja Prakash](https://research.g2.com/insights/author/neeraja-prakash)

Updated October 3, 2024

UCaaS, or unified communications as a service, software serves as a communication and collaboration hub for organizations. These tools provide features such as VoIP, instant messaging, video conferencing, and other collaboration tools in a singular, cloud-based platform. UCaaS platforms can connect entire enterprise businesses, facilitating rapid, streamlined communication and decision-making with varying functionality offered in one product. While the U in UCaaS stands for unified, not universal, the goal of these platforms is to bring all corporate person-to-person communication methods under one umbrella.

UCaaS products offer features provided by collaborative point solutions such as [VoIP software](https://www.g2.com/categories/voip), [video conferencing software](https://www.g2.com/categories/video-conferencing), [internal communications software](https://www.g2.com/categories/internal-communications), and other [team collaboration software](https://www.g2.com/categories/team-collaboration) types. While businesses could purchase each one of these solutions separately, a UCaaS platform can potentially supply the features of them all in a more malleable package. The integrated nature of these platforms enables users to monitor and receive alerts via one medium.

While UCaaS products provide extensive functionality themselves, many will integrate with outside [content management systems](https://www.g2.com/categories/content-management) or [contact center software](https://www.g2.com/categories/contact-center) depending on the specific use case of the organization in question. However, it is extremely uncommon for UCaaS to provide discrete email capabilities, and typically leverages whatever email system the business uses to handle messaging and coordination in that channel.

To qualify for inclusion in the UCaaS category, a product must:

- Be a cloud-based collaboration and communication platform
- Supply VoIP, video conferencing, business messaging, and file sharing
- Provide cross-channel functionality
- Offer additional collaboration and communication tools natively
- Be flexible enough to incorporate new communication channels as they are developed

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