Best VoIP Providers - Page 10

How Many VoIP Providers Products Does G2 Track?

Total Products under this Category: 566

Category Stats (Nov 2026)

  • Average Rating: 4.4/5 (↑0.01 vs Oct 2026) The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: VoiceStack (+10.92%) - Among all products in this category, VoiceStack recorded the largest rating increase compared to last month

Last updated: November 01, 2026

How Does G2 Rank VoIP Providers Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 85,000+ Authentic Reviews
  • 566+ 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 VoIP Providers

G2 Grid® for VoIP Providers plotting products by satisfaction and market presence

Highlighted products: RingEX, Nextiva, Quo, Zoom Phone, Dialpad Connect, Webex Suite, Webex Calling, and Aircall.

Underlying data: [Grid® JSON](https://www.g2.com/categories/voip-providers/grids.json?focus%5B%5D=ringex&focus%5B%5D=nextiva&focus%5B%5D=quo-quo&focus%5B%5D=zoom-zoom-phone&focus%5B%5D=dialpad-connect&focus%5B%5D=cisco-webex-suite&focus%5B%5D=webex-calling&focus%5B%5D=aircall)

Kall8

With Kall8, you can instantly activate and forward your 800 numbers, view calls, and analyze the results of your ad campaigns online.

Average Rating: 1.8/5.0

Total Reviews: 4

How Do G2 Users Rate Kall8?

  • Has the product been a good partner in doing business?: 0.0/10 (Category avg: 8.8/10)
  • Phone Calls: 10.0/10 (Category avg: 9.2/10)
  • VOiP Number: 5.0/10 (Category avg: 9.1/10)

Who Is the Company Behind Kall8?

  • Seller: Kall8
  • Year Founded: 2014
  • HQ Location: Seattle, US
  • LinkedIn® Page: www.linkedin.com
    11 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 75% Small

What Are Recent G2 Reviews of Kall8?

What Are G2 Users Discussing About Kall8?

Lumen Cloud Voice

CenturyLink Voice Complete enables all major unified communication products and applications. Choose who, what and when. Our service is certified on multiple platforms, including Avaya¨, Cisco¨ and Microsoft¨. WeÕre ready when you are.

Average Rating: 3.8/5.0

Total Reviews: 4

How Do G2 Users Rate Lumen Cloud Voice?

  • Has the product been a good partner in doing business?: 10.0/10 (Category avg: 8.8/10)
  • Phone Calls: 10.0/10 (Category avg: 9.2/10)
  • VOiP Number: 8.3/10 (Category avg: 9.1/10)
  • Desk-to-Desk Calls: 6.7/10 (Category avg: 8.6/10)

Who Is the Company Behind Lumen Cloud Voice?

Who Uses This Product?

  • Company Size: 75% Medium, 25% Small

What Are Recent G2 Reviews of Lumen Cloud Voice?

What Are G2 Users Discussing About Lumen Cloud Voice?

MirrorFly

MirrorFly is a comprehensive CPaaS platform empowering businesses to create engaging communication experiences. MirrorFly provides robust functionalities including voice & video calling, chat, live streaming APIs and SDKs. It is world #1 white label self-hosted , SaaS and CPaaS provider with extensive customization options, allowing businesses across multiple industries including healthcare, telecommunication, finance, social apps, e-commerce, logistics & more MirrorFly with pre-designed UI components to accelerate development. Gain valuable insights into user behavior through our advanced analytics tools. Prioritize data security with our industry-leading encryption and compliance standards. The scalable platform ensures seamless performance, even during peak usage. Experience faster time-to-market, enhanced customer satisfaction, optimized costs, and streamlined operations with MirrorFly CPaaS. Highlights of MirrorFly as CPaaS ✅ 100% Customizable Workflow ✅ Host on Your Own Server ✅ Complete Data in Your Hand ✅ 1000+ Features (Chat, Voice, Video Chat, Video KYC, Live Stream, Conference, SIP, Activity Feed, etc) ✅ Custom Security (Gmail, Phone, BioMetric, etc) ✅ Upload Enlarged Files (3+ GB) ✅ Mulit-tenant Server ✅ Scale 1+ Billion Concurrent Users ✅ One Time License Cost ✅ Free Migration & Integration ✅ Hire Your Own Dedicated Team

Average Rating: 4.4/5.0

Total Reviews: 29

How Do G2 Users Rate MirrorFly?

  • Has the product been a good partner in doing business?: 9.1/10 (Category avg: 8.8/10)
  • Phone Calls: 10.0/10 (Category avg: 9.2/10)
  • VOiP Number: 10.0/10 (Category avg: 9.1/10)
  • Desk-to-Desk Calls: 10.0/10 (Category avg: 8.6/10)

Who Is the Company Behind MirrorFly?

  • Seller: Mirrorfly
  • Year Founded: 2015
  • HQ Location: Atlanta, US
  • LinkedIn® Page: www.linkedin.com
    1 employees on LinkedIn®
  • Ownership: Thyaghu
  • Phone: 9884311333

Who Uses This Product?

  • Company Size: 43% Medium, 40% Small

What Are Recent G2 Reviews of MirrorFly?

What Are G2 Users Discussing About MirrorFly?

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netelip

netelip offers IP telephony service and cloud-based business solutions.

Average Rating: 2.6/5.0

Total Reviews: 4

How Do G2 Users Rate netelip?

  • Has the product been a good partner in doing business?: 0.0/10 (Category avg: 8.8/10)
  • Phone Calls: 6.7/10 (Category avg: 9.2/10)
  • VOiP Number: 7.5/10 (Category avg: 9.1/10)
  • Desk-to-Desk Calls: 4.2/10 (Category avg: 8.6/10)

Who Is the Company Behind netelip?

  • Seller: netelip
  • Year Founded: 2006
  • HQ Location: Málaga, ES
  • LinkedIn® Page: www.linkedin.com
    19 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of netelip?

What Are G2 Users Discussing About netelip?

Radius Connect

Radius Connect is the leading independent telecommunications provider in the UK and Ireland. Our intelligent, cloud-based telephony solutions can boost your business and improve efficiency. With its flexible, affordable, and easy-to-use software, you can reduce the costs of your calls, improve call quality, and help to future-proof your business. From simple desk phone solutions to desktop applications and CRM integration, you can choose a stack of features that’s right for you.

Average Rating: 4.6/5.0

Total Reviews: 4

How Do G2 Users Rate Radius Connect?

  • Has the product been a good partner in doing business?: 10.0/10 (Category avg: 8.8/10)
  • Phone Calls: 9.6/10 (Category avg: 9.2/10)
  • VOiP Number: 9.6/10 (Category avg: 9.1/10)
  • Desk-to-Desk Calls: 10.0/10 (Category avg: 8.6/10)

Who Is the Company Behind Radius Connect?

  • Seller: Radius
  • Year Founded: 1990
  • HQ Location: Crewe, GB
  • LinkedIn® Page: www.linkedin.com
    2,394 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 75% Medium, 25% Large

What Do G2 Reviewers Say About Radius Connect?

AI-generated summary from verified user reviews

Pros
  • Users value the easy integration options of Radius Connect, enhancing their communication and client interactions seamlessly.
  • Users value the options variety of Radius Connect, appreciating the tailored solutions that enhance their communication experience.
  • Users value the reliability of Radius Connect, securing office WiFi access with a single, memorable password.
Cons
  • Users experience connection issues with Radius Connect, occasionally facing server downtime that disrupts usage.
  • Users experience performance issues with Radius Connect, noting slow and unreliable fax transmissions affecting client correspondence.

What Are Recent G2 Reviews of Radius Connect?

Superfone

Superfone provides India's 1st VOIP business phone + integrated CRM and Whatsapp API platform for growing businesses. 10,000+ companies trust Superfone for their business communications! We're 50% cheaper than expensive enterprise grade tools that are too bloated for your needs & complex for your staff to use. Say goodbye to managing multiple SIM cards with our shared multi-number management capabilities! We help sales, operations and support teams talk to customers promptly and efficiently to deliver a superior customer experience.

Average Rating: 4.5/5.0

Total Reviews: 4

How Do G2 Users Rate Superfone?

  • Phone Calls: 6.7/10 (Category avg: 9.2/10)
  • VOiP Number: 7.5/10 (Category avg: 9.1/10)

Who Is the Company Behind Superfone?

  • Seller: Superfone
  • Year Founded: 2021
  • HQ Location: Bangalore, IN
  • LinkedIn® Page: www.linkedin.com
    40 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 60% Small, 20% Medium

What Do G2 Reviewers Say About Superfone?

AI-generated summary from verified user reviews

Pros
  • Users value the call recording capability of Superfone, enhancing QA processes and tracking team performance effectively.
  • Users appreciate the cost efficiency of Superfone, finding it ideal for small teams with basic needs.
  • Users value the extensive features of Superfone, which enhance productivity and meet the needs of small teams.
  • Users appreciate the comprehensive business tools of Superfone, enhancing productivity through effective tracking and task management.
  • Users appreciate the ease of use of Superfone, making team management and sales tracking highly efficient.
Cons
  • Users note the limited features of Superfone, affecting CRM integration and availability for non-Android users.
  • Users find the high cost of Superfone discouraging, especially with limited features in the free trial and slow performance.
  • Users find the high pricing of Superfone discouraging, especially for essential features lacking in the free trial.
  • Users report performance issues with Superfone, especially concerning slow IVR and high costs for elite services.
  • Users express frustration over subscription issues, as only quarterly and annual plans are available, with no monthly options.

What Are Recent G2 Reviews of Superfone?

TollFreeForwarding

TollFreeForwarding offers hosted PBX, call forwarding and IVR solutions.

Average Rating: 4.8/5.0

Total Reviews: 4

How Do G2 Users Rate TollFreeForwarding?

  • Has the product been a good partner in doing business?: 10.0/10 (Category avg: 8.8/10)
  • Phone Calls: 10.0/10 (Category avg: 9.2/10)
  • VOiP Number: 10.0/10 (Category avg: 9.1/10)

Who Is the Company Behind TollFreeForwarding?

Who Uses This Product?

  • Company Size: 60% Medium, 20% Small

What Are Recent G2 Reviews of TollFreeForwarding?

What Are G2 Users Discussing About TollFreeForwarding?

VoiceLink

VoiceLink is a hosted PBX solution for small businesses. With the best features in the industry like voice-mail to email, call forwarding, parking-lot, and more!

Average Rating: 4.1/5.0

Total Reviews: 4

How Do G2 Users Rate VoiceLink?

  • Has the product been a good partner in doing business?: 8.3/10 (Category avg: 8.8/10)
  • Phone Calls: 8.9/10 (Category avg: 9.2/10)
  • VOiP Number: 8.3/10 (Category avg: 9.1/10)
  • Desk-to-Desk Calls: 8.3/10 (Category avg: 8.6/10)

Who Is the Company Behind VoiceLink?

Who Uses This Product?

  • Company Size: 50% Large, 50% Small

What Are Recent G2 Reviews of VoiceLink?

What Are G2 Users Discussing About VoiceLink?

VoIPLy

VoIPLy helps you serve customers better with mobile, flexible solutions that help you do business anywhere, anytime.

Average Rating: 3.3/5.0

Total Reviews: 4

How Do G2 Users Rate VoIPLy?

  • Has the product been a good partner in doing business?: 1.7/10 (Category avg: 8.8/10)
  • Phone Calls: 6.7/10 (Category avg: 9.2/10)
  • VOiP Number: 10.0/10 (Category avg: 9.1/10)
  • Desk-to-Desk Calls: 6.7/10 (Category avg: 8.6/10)

Who Is the Company Behind VoIPLy?

  • Seller: VoIPLy
  • Year Founded: 2012
  • HQ Location: Pittsburgh, US
  • LinkedIn® Page: www.linkedin.com
    23 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 75% Small

What Are Recent G2 Reviews of VoIPLy?

What Are G2 Users Discussing About VoIPLy?

Amp Telecom

Business Voice Over IP (VoIP) solution with crystal clear calling, 24/7 reliability, and can help you save up to 60% off your monthly phone bill.

Average Rating: 4.7/5.0

Total Reviews: 3

How Do G2 Users Rate Amp Telecom?

  • Has the product been a good partner in doing business?: 10.0/10 (Category avg: 8.8/10)
  • Phone Calls: 10.0/10 (Category avg: 9.2/10)
  • VOiP Number: 10.0/10 (Category avg: 9.1/10)
  • Desk-to-Desk Calls: 10.0/10 (Category avg: 8.6/10)

Who Is the Company Behind Amp Telecom?

Who Uses This Product?

  • Company Size: 33% Large, 33% Medium

What Do G2 Reviewers Say About Amp Telecom?

AI-generated summary from verified user reviews

Pros
  • Users praise the fantastic customer support of Amp Telecom, highlighting their responsiveness and helpfulness.
  • Users value the fantastic support and reliable VoIP calling services offered by Amp Telecom for cloud telephony.

What Are Recent G2 Reviews of Amp Telecom?

What Are G2 Users Discussing About Amp Telecom?

BT Cloud Phone

Phone systems hosted in the cloud for flexibility, agility, and powerful call-management features

Average Rating: 4.3/5.0

Total Reviews: 3

How Do G2 Users Rate BT Cloud Phone?

  • Phone Calls: 10.0/10 (Category avg: 9.2/10)
  • VOiP Number: 10.0/10 (Category avg: 9.1/10)
  • Desk-to-Desk Calls: 10.0/10 (Category avg: 8.6/10)

Who Is the Company Behind BT Cloud Phone?

  • Seller: BT
  • HQ Location: London, GB
  • LinkedIn® Page: www.linkedin.com
    73,850 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Small, 67% Large

What Are Recent G2 Reviews of BT Cloud Phone?

What Are G2 Users Discussing About BT Cloud Phone?

CallTools

CallTools.com Predictive Dialer is a type of telecommunications software solution designed to enhance the efficiency of outbound calling for businesses. This tool automates the dialing process, allowing agents to focus on conversations rather than manual dialing, thereby increasing productivity and optimizing call volume. By utilizing advanced algorithms, the predictive dialer anticipates when agents will be available to take calls, ensuring that they are connected to prospects at the right time. This solution is particularly beneficial for call centers, sales teams, and any organization that relies on high-volume outbound communication. The target audience includes business owners and managers who seek to maximize their team's efficiency and improve overall operational performance. Specific use cases range from telemarketing campaigns to customer follow-ups, where timely and effective communication is crucial for success. Key features of the CallTools.com Predictive Dialer include its ability to handle multiple lines simultaneously, real-time analytics, and seamless integration with customer relationship management (CRM) systems. The predictive dialing technology minimizes downtime by reducing the time agents spend waiting between calls. Additionally, the software offers customizable settings that allow users to adjust dialing modes based on their specific needs, ensuring that the solution can adapt to various business environments. One of the standout benefits of this predictive dialer is its commitment to customer support. CallTools.com prides itself on providing in-house assistance, ensuring that users can receive prompt help when needed. This level of support not only helps in troubleshooting issues but also fosters a sense of partnership between the service provider and its clients. By prioritizing user experience and operational efficiency, CallTools.com enables businesses to make the most of their time and resources. Overall, the CallTools.com Predictive Dialer stands out in the telecommunications software category by combining sophisticated technology with dedicated customer service. Now with unlimited minutes, both inbound and outbound. It empowers businesses to streamline their outbound calling processes, ultimately leading to improved engagement with prospects and higher conversion rates. This solution is designed for those who recognize the value of their time and seek to enhance their communication strategies effectively.

Average Rating: 4.8/5.0

Total Reviews: 76

How Do G2 Users Rate CallTools?

  • Has the product been a good partner in doing business?: 9.5/10 (Category avg: 8.8/10)
  • Phone Calls: 10.0/10 (Category avg: 9.2/10)
  • VOiP Number: 10.0/10 (Category avg: 9.1/10)
  • Desk-to-Desk Calls: 10.0/10 (Category avg: 8.6/10)

Who Is the Company Behind CallTools?

  • Seller: Call Tools
  • Company Website:
  • Year Founded: 2015
  • HQ Location: Irvine, CA
  • LinkedIn® Page: www.linkedin.com
    33 employees on LinkedIn®
  • Ownership: OTC: BETS

Who Uses This Product?

  • Who Uses This: CEO
  • Top Industries: Real Estate, Financial Services
  • Company Size: 84% Small, 13% Medium

What Do G2 Reviewers Say About CallTools?

AI-generated summary from verified user reviews

Pros
  • Users appreciate the exceptional customer support from CallTools, noting their quick response and friendly assistance.
  • Users appreciate the user-friendly experience of CallTools, finding it easy to navigate and utilize effectively.
  • Users appreciate the quick and friendly support from CallTools, consistently enhancing their overall experience with the platform.
  • Users praise the user-friendly design and powerful features of CallTools, enhancing efficiency in high-volume calling.
  • Users commend the intuitive design of CallTools, enabling fast setup and efficient outbound calling without extensive training.
Cons
  • Users feel the service is expensive, yet acknowledge the value in its comprehensive features and reliability.
  • Users find the learning curve overwhelming, particularly for those still familiarizing themselves with the features of CallTools.
  • Users find the high cost of CallTools to be a drawback, despite its overall effectiveness and reliability.
  • Users feel the onboarding process is complex, sometimes wasting time, although it aids less tech-savvy individuals.
  • Users face dialer limitations with delays between calls, impacting the efficiency of their calling experience.

What Are Recent G2 Reviews of CallTools?

What Are G2 Users Discussing About CallTools?

CommPeak

Driving Contact Center Performance to Its Peak - CommPeak helps contact centers optimize inbound and outbound communication with cloud-based solutions that boost agent productivity and expand reach. From predictive dialing and omnichannel conversations to VoIP and DID numbers, our services keep operations connected and performing at their best. Our Products - Our global offering includes premium A–Z termination, SMS and messaging, CloudPBX, DID numbers, HLR LookUp, and a free softphone for business calling. Supported by AI insights, Tier 1 connectivity, and a robust provider network, CommPeak provides scalable solutions to control costs and optimize communication. * CommPeak Dialer – An AI-powered dialer maximizes talk time and reduces wait time by routing calls based on real-time agent availability with flexible workflows, adaptable dialing strategies, and omnichannel reach. * CloudPBX – a cloud phone system for global and distributed teams, integrating with CRMs and business tools while providing real-time control over performance, routing, and call quality. * TextPeak SMS Messaging – A messaging platform for handling high volume SMS campaigns and omnichannel conversation, complete with a shared team inbox. * SIP Trunking – premium A–Z voice termination that delivers secure, high-quality connectivity, with flexible routing and cost controls that scale capacity as needed. * DID Numbers – secure local, cost-effective numbers to expand your presence worldwide and connect with customers in key markets. * HLR LookUp – A number validation service so you only connect with active leads and avoid wasting time on unreachable contacts. * Softphone – A free, user-friendly application for business calling that supports SIP accounts and remote teams from browser or desktop. Turning Engagement Into Results - Every interaction can become a business win with tools that improve how agents connect with leads and customers. * Live Monitoring - gives managers real-time visibility and control over activity. * Omnichannel Outreach - extends engagement beyond voice by enabling agents to reach customers and leads through SMS, WhatsApp, or Telegram Bot. * Tier 1 Connectivity - backs every call with Tier 1 quality, providing reliable global reach and consistently high-quality connections. * AI Call Analysis - turn calls into insights. Every call becomes a searchable transcript, with AI summaries that highlight tone and resolution. Turning Communication Into Measurable Outcomes - CommPeak solutions deliver tangible results. * Boosts Agent Productivity - through structured workflows and clear task ownership. * Reduces Operational Costs - with premium A–Z termination and optimized processes. * Supports Data-Driven Decisions - by providing performance insights that guide strategy. * Scales for Growth - with global coverage, multiple PoPs, and dedicated customer success managers. * Drives Lead Engagement and Sales - by improving targeting, timing, and personalization across channels. * Strengthens Customer Experience - with consistent, well-timed communication routed to the right agent. Reliability and Security at Every Level - CommPeak provides the infrastructure and security to keep communication connected and protected. * 55+ Tier 1 connections * 10 global PoPs * PSTN replacement in 45+ countries Security is prioritized with end-to-end encryption, masked contact details, and custom user permissions. Behind every service is in-house expertise, from proprietary solutions to dedicated onboarding and 24/7 live support.

Average Rating: 4.4/5.0

Total Reviews: 6

How Do G2 Users Rate CommPeak?

  • Has the product been a good partner in doing business?: 10.0/10 (Category avg: 8.8/10)
  • Phone Calls: 10.0/10 (Category avg: 9.2/10)
  • VOiP Number: 10.0/10 (Category avg: 9.1/10)
  • Desk-to-Desk Calls: 8.3/10 (Category avg: 8.6/10)

Who Is the Company Behind CommPeak?

  • Seller: CommPeak
  • Year Founded: 2011
  • HQ Location: Wan Chai, HK
  • LinkedIn® Page: www.linkedin.com
    112 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 50% Medium, 50% Small

What Are CommPeak's Pros and Cons?

Pros
  • Easy Setup (1 reviews)
  • Setup Ease (1 reviews)
Cons
  • Expensive (1 reviews)
  • Poor Customer Support (1 reviews)
  • Unethical Sales (1 reviews)
  • Unethical Sales Practices (1 reviews)

What Are Recent G2 Reviews of CommPeak?

What Are G2 Users Discussing About CommPeak?

Dial Gate VoIP Softswitch

Dial Gate is a web-based VoIP softswitch and billing server for the IP and PSTN networks. Once installed on a server, it functions as a VoIP softswitch by connecting calls from one phone line to another within the same or different networks. It also offers management features including real-time monitoring, pre- & post-paid billing, automatic invoice scheduling & call-plan subscriptions.

Average Rating: 4.2/5.0

Total Reviews: 3

How Do G2 Users Rate Dial Gate VoIP Softswitch?

  • Has the product been a good partner in doing business?: 8.3/10 (Category avg: 8.8/10)
  • Phone Calls: 8.3/10 (Category avg: 9.2/10)
  • VOiP Number: 8.3/10 (Category avg: 9.1/10)
  • Desk-to-Desk Calls: 5.0/10 (Category avg: 8.6/10)

Who Is the Company Behind Dial Gate VoIP Softswitch?

  • Seller: Dialexia
  • Year Founded: 2001
  • HQ Location: montreal, CA
  • LinkedIn® Page: www.linkedin.com
    13 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 67% Medium, 33% Large

What Are Recent G2 Reviews of Dial Gate VoIP Softswitch?

What Are G2 Users Discussing About Dial Gate VoIP Softswitch?

Dzinga

Dzinga provides professional communication solutions. All-in-one platform. Cloud-based. Multifunctional.

Average Rating: 4.2/5.0

Total Reviews: 3

How Do G2 Users Rate Dzinga?

  • Phone Calls: 7.5/10 (Category avg: 9.2/10)
  • VOiP Number: 7.5/10 (Category avg: 9.1/10)
  • Desk-to-Desk Calls: 9.2/10 (Category avg: 8.6/10)

Who Is the Company Behind Dzinga?

  • Seller: Dzinga
  • Year Founded: 2015
  • HQ Location: N/A
  • LinkedIn® Page: www.linkedin.com
    1 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 67% Small, 33% Medium

What Are Recent G2 Reviews of Dzinga?

What Are G2 Users Discussing About Dzinga?

Neeraja Prakash
NP
Researched and written by Neeraja Prakash
Updated April 9, 2026