Best VoIP Providers - Page 14

How Many VoIP Providers Products Does G2 Track?

Total Products under this Category: 481

Category Stats (Sep 2026)

  • Average Rating: 4.38/5 The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: Phone2 (+1.96%) - Among all products in this category, Phone2 recorded the largest rating increase compared to last month

Last updated: September 01, 2026

How Does G2 Rank VoIP Providers Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 61,600+ Authentic Reviews
  • 481+ 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, Zoom Phone, Quo, Dialpad Connect, Webex Calling, Webex Suite, 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=zoom-zoom-phone&focus%5B%5D=quo-quo&focus%5B%5D=dialpad-connect&focus%5B%5D=webex-calling&focus%5B%5D=cisco-webex-suite&focus%5B%5D=aircall)

Business Telecom Services

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

How Do G2 Users Rate Business Telecom Services?

  • Phone Calls: 10.0/10 (Category avg: 9.1/10)
  • VOiP Number: 10.0/10 (Category avg: 9.0/10)
  • Desk-to-Desk Calls: 8.3/10 (Category avg: 8.6/10)

Who Is the Company Behind Business Telecom Services?

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of Business Telecom Services?

Call2Teams

Connect your existing business phone system to Microsoft Teams Call2Teams is an enterprise-grade communications-integration service

Average Rating: 5.0/5.0

Total Reviews: 1

Who Is the Company Behind Call2Teams?

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of Call2Teams?

CALLBEAT

CALLBEAT is a comprehensive technology platform specializing in B2B telecommunications solutions, cloud voice services, and advanced conversational Artificial Intelligence. We provide robust, enterprise-grade infrastructure designed specifically for growing businesses, corporations, and customer service centers across Latin America, with a strong operational focus on Mexico, Colombia, Chile, and Argentina. At its core, CALLBEAT offers a high-availability Cloud PBX and IP telephony system that empowers companies to modernize their communications without the need for expensive physical hardware or complex local maintenance. Key Features of Our Platform: First, our Cloud Telephony provides local numbering (DIDs), unlimited inbound calls, and highly customizable Virtual Receptionists (IVR) to route calls efficiently. Second, Real-time Management includes call recording, detailed call logs, live monitoring, and multi-device extension connectivity for remote teams. Third, our Conversational AI delivers 24/7 intelligent voice assistants capable of automating customer support and sales processes with natural, human-like interactions. Finally, our Omnichannel and Blaster Services offer specialized tools for executing highly effective mass messaging and automated calling campaigns, natively integrated with popular CRMs. Security and reliability are top priorities for our dedicated team. We guarantee consistent uptime and secure data transmission for all your daily corporate communications, ensuring your staff remains fully connected without unexpected interruptions. Furthermore, our intuitive administration dashboards make it incredibly easy to manage user permissions and review analytics. We pride ourselves on offering permanent, professional technical support in Spanish, ensuring our platform meets the specific operational needs of the Mexican market and Latin America, including localized B2B billing compliance. By unifying Cloud PBX, AI-driven automation, and powerful omnichannel tools into a single ecosystem, CALLBEAT enables organizations to optimize workflows and greatly enhance customer satisfaction.

Average Rating: 5.0/5.0

Total Reviews: 1

How Do G2 Users Rate CALLBEAT?

  • 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: 9.1/10)
  • VOiP Number: 10.0/10 (Category avg: 9.0/10)

Who Is the Company Behind CALLBEAT?

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of CALLBEAT?

Callifi

Callifi is a hosted VoIP phone system provider based in Midtown Manhattan. We install, repair, and support business phone systems for offices across the NYC tri-state area. Services include hosted VoIP, phone system repair (Avaya, NEC, Nortel, Panasonic, Mitel, Toshiba, Cisco), SIP trunking, network cabling, business internet, elevator phones, cloud fax, and business texting. We handle on-site installation, configuration, cabling, number porting, and staff training. When something breaks, you call us and a real person picks up — not a call center. Family-run by Gill and Sass. Serving all five NYC boroughs, Westchester, Long Island, New Jersey, Connecticut, and the Hudson Valley.

Average Rating: 5.0/5.0

Total Reviews: 1

How Do G2 Users Rate Callifi?

  • Phone Calls: 10.0/10 (Category avg: 9.1/10)
  • VOiP Number: 10.0/10 (Category avg: 9.0/10)
  • Desk-to-Desk Calls: 10.0/10 (Category avg: 8.6/10)

Who Is the Company Behind Callifi?

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of Callifi?

What Are G2 Users Discussing About Callifi?

Class 5 Softswitch

Alaris inVoice is a billing and provisioning software provides customer with rate plans creation, customer information management, routing system, and analytics.

Average Rating: 5.0/5.0

Total Reviews: 1

How Do G2 Users Rate Class 5 Softswitch?

  • Phone Calls: 8.3/10 (Category avg: 9.1/10)
  • VOiP Number: 8.3/10 (Category avg: 9.0/10)
  • Desk-to-Desk Calls: 8.3/10 (Category avg: 8.6/10)

Who Is the Company Behind Class 5 Softswitch?

Who Uses This Product?

  • Company Size: 100% Small

What Do G2 Reviewers Say About Class 5 Softswitch?

AI-generated summary from verified user reviews

Cons
  • Users find the interface less user-friendly, which hinders their overall experience despite the amazing functionalities.

What Are Recent G2 Reviews of Class 5 Softswitch?

What Are G2 Users Discussing About Class 5 Softswitch?

CM.com

Today, people all over the world are connected via their mobile phones. All-day, every day. Businesses, as well as their customers, are looking for more efficient and customer-centric ways to communicate with each other through mobile channels. Conversational Commerce promises just that; you can be exactly where your customers are. Conversational Commerce is the smart combination of all the popular messaging channels, data tools, and payment solutions. It allows customers to contact businesses and finish the path-to-purchase within their favorite messaging channel. Have rich, efficient and customer-centric conversations with your customer on mobile, without any technological barriers. CM.com provides a smart combination of messaging channels, such as SMS, RCS, WhatsApp Business, and Apple Business Chat combined with a Customer Data Platform and other platform features. CM.com is one of the first Cloud Communication Platforms in the world with integrated Payment functionality. The CM.com platform can be used via API and Web App.

Average Rating: 4.8/5.0

Total Reviews: 11

How Do G2 Users Rate CM.com?

  • Has the product been a good partner in doing business?: 10.0/10 (Category avg: 8.8/10)

Who Is the Company Behind CM.com?

  • Seller: CM.com
  • Year Founded: 1999
  • HQ Location: Breda, Noord-Brabant
  • Twitter: @CMcom_
    1,698 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    744 employees on LinkedIn®
  • Ownership: AMS: CMCOM

Who Uses This Product?

  • Company Size: 50% Medium, 50% Small

What Are Recent G2 Reviews of CM.com?

What Are G2 Users Discussing About CM.com?

Compass

Our Compass platform is a cloud-based telephony system that offers high-quality connections. Our technology ensures stable, crystal-clear communication everywhere. Compass serves as the foundation of an adaptable telephony system. Build on top of it, or use one of our ready-made apps.

Average Rating: 5.0/5.0

Total Reviews: 1

How Do G2 Users Rate Compass?

  • Has the product been a good partner in doing business?: 6.7/10 (Category avg: 8.8/10)

Who Is the Company Behind Compass?

  • Seller: Talksome
  • Year Founded: 2011
  • HQ Location: The Hague, NL
  • LinkedIn® Page: www.linkedin.com
    18 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Large

What Are Recent G2 Reviews of Compass?

CONQUER

Conquer.io is a leading sales engagement platform designed to empower revenue teams to achieve their goals with greater efficiency and effectiveness. Our mission is to transform the way teams engage with prospects and customers, unlocking new opportunities for growth and success. By unifying communication channels, automating repetitive tasks, and providing actionable insights, Conquer.io helps organizations close deals faster and foster meaningful customer relationships. Our platform offers a comprehensive suite of tools, including auto-dialing, SMS capabilities, AI-powered cadencing, conversational intelligence, call sentiment analysis, and more, all seamlessly integrated into your CRM. With a proven track record of enhancing sales productivity, reducing time-to-close, and increasing pipeline coverage, Conquer.io is trusted by some of the most innovative and successful teams across a variety of industries. By partnering with Conquer.io, organizations gain access to a scalable, customizable solution that adapts to their unique needs, ensuring sustained competitive advantage in an ever-evolving marketplace. SOLUTIONS: Conquer.io has multiple offerings depending upon customer need. These include our Conquer Voice or Conquer Cadence modules, as well as our full Conquer Platform for organizations looking to accelerate their sales to the next level. 1. Conquer Voice: Boost productivity, engage more leads, and close deals faster with Conquer’s advanced voice dialer. Native to Salesforce, Conquer Voice revolutionizes your sales process without having to leave Salesforce, empowering reps to reach their full potential across voice, SMS, and social channels. Additionally, Conquer Voice has been ranked as the leader in dialer quality compared to other popular dialers on the market. 2. Conquer Cadence: Reach buyers on their terms with the only sales engagement platform native to Salesforce. Conquer’s optimized sales cadence empowers your team to build meaningful connections, shorten sales cycles, and close more deals—all with seamless automation that enhances every engagement. 3. Conquer Platform: Includes access to both Conquer Voice and Conquer Cadence, as well as a suite of next-level sales acceleration capabilities: • Omnichannel communication: Boost rep productivity with enterprise-grade multichannel sales management that connects voice, SMS, and social channels—all within your CRM. • AI-driven Insights: Turn data into revenue with AI sales coaching that refines your sales strategy, predicts outcomes, and drives decisions that boost your bottom line. Conquer’s AI insights give your team real-time guidance, identifying high-impact actions. Say goodbye to guesswork and watch your revenue grow like never before. • Dynamic Battlecards: CRM-integrated insights provide real-time objection-handling tips and strategy recommendations based on competitive intel—helping reps confidently navigate negotiations and close deals faster. • Sales Optimization Analytics: Gain a competitive edge with Conquer’s sales optimization analytics. Our platform not only streamlines processes but also provides powerful analytics that unveil trends and performance metrics. By harnessing this data, your team can make informed decisions, optimize strategies, and drive consistent growth. Don’t just manage your pipeline—master it. • Customization and Scalability: Our platform is highly customizable to fit the specific needs of each customer, whether a small team or a global organization.

Average Rating: 4.3/5.0

Total Reviews: 119

How Do G2 Users Rate CONQUER?

  • Has the product been a good partner in doing business?: 9.2/10 (Category avg: 8.8/10)

Who Is the Company Behind CONQUER?

  • Seller: CONQUER
  • Year Founded: 2007
  • HQ Location: Reno, NV
  • LinkedIn® Page: www.linkedin.com
    86 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: District Manager
  • Top Industries: Sports, Human Resources
  • Company Size: 36% Large, 35% Medium

What Do G2 Reviewers Say About CONQUER?

AI-generated summary from verified user reviews

Pros
  • Users find CONQUER's ease of use enhances efficiency, making calls and recording dispositions simple and quick.
  • Users value the seamless automation features of CONQUER, which simplify daily tasks and enhance training efficiency.
  • Users value the easy call recording feature of CONQUER, enhancing efficiency and ease of training for new employees.
  • Users value the customizability of CONQUER, enabling tailored cadences and empowering reps with autonomy.
  • Users value the extensive customization options in CONQUER, empowering reps with autonomy and tailored cadences.
Cons
  • Users face significant call issues, including audio delays and lost recordings, impacting compliance and functionality.
  • Users face call management issues, struggling with voicemail transcriptions and missing recordings, impacting compliance and usability.
  • Users find the difficult implementation process lengthy, though support is helpful throughout the setup.
  • Users find the implementation challenges frustrating, though assistance from support helps ease the process.
  • Users are frustrated by missing features like call recordings in Conquer, impacting compliance and usability.

What Are Recent G2 Reviews of CONQUER?

Crossoft

Crossoft is a billing, provisioning, scheduling, work order management system for voice, video & data services. We are a service provider ourselves who developed a system we could use in our wholesale deployments but in a way that any service provider can use it. The system is customizable to fit the current workflow or to enhance it with your defined level of desired automation.

Average Rating: 4.0/5.0

Total Reviews: 1

How Do G2 Users Rate Crossoft?

  • Phone Calls: 10.0/10 (Category avg: 9.1/10)
  • VOiP Number: 8.3/10 (Category avg: 9.0/10)
  • Desk-to-Desk Calls: 6.7/10 (Category avg: 8.6/10)

Who Is the Company Behind Crossoft?

Who Uses This Product?

  • Company Size: 100% Large

What Do G2 Reviewers Say About Crossoft?

AI-generated summary from verified user reviews

Pros
  • Users find Crossoft to be an affordable solution, simplifying network management without compromising quality.
  • Users value how Crossoft simplifies network management, providing customized solutions at a cost-effective price.
  • Users value the cost efficiency of Crossoft as it offers a cheaper alternative to network management investments.

What Are Recent G2 Reviews of Crossoft?

Devyce

Devyce is the AI-powered business phone system. As well as reliable calling and messaging, Devyce automatically summarizes your calls, saving time entering details into your CRM. Create teams to handle inbound calls to your sales or support lines, while collaborating with colleagues. Available on Web, iOS, and Android with a native Mac app coming soon.

Average Rating: 4.0/5.0

Total Reviews: 1

How Do G2 Users Rate Devyce?

  • Phone Calls: 6.7/10 (Category avg: 9.1/10)
  • VOiP Number: 8.3/10 (Category avg: 9.0/10)
  • Desk-to-Desk Calls: 5.0/10 (Category avg: 8.6/10)

Who Is the Company Behind Devyce?

  • Seller: Devyce
  • Year Founded: 2020
  • HQ Location: London, GB
  • LinkedIn® Page: www.linkedin.com
    31 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Small

What Do G2 Reviewers Say About Devyce?

AI-generated summary from verified user reviews

Pros
  • Users find Devyce to have a great interface and ease of use, enhancing their overall experience.
  • Users love the easy-to-use interface of Devyce, appreciating its functionality and text messaging capability.
  • Users love the easy-to-use messaging features of Devyce, appreciating its great interface and texting capability.

What Are Recent G2 Reviews of Devyce?

Dialinger

Dialinger is a business phone system built for startups, freelancers, and small businesses who need reliable calling and SMS with a local presence — without paying for enterprise features they will never use.

Average Rating: 5.0/5.0

Total Reviews: 1

How Do G2 Users Rate Dialinger?

  • 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: 9.1/10)
  • VOiP Number: 10.0/10 (Category avg: 9.0/10)
  • Desk-to-Desk Calls: 10.0/10 (Category avg: 8.6/10)

Who Is the Company Behind Dialinger?

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of Dialinger?

Diallog

Diallog Telecommunications provides voice, internet, and data services to small, medium and large businesses.

Average Rating: 4.0/5.0

Total Reviews: 1

Who Is the Company Behind Diallog?

  • Seller: Diallog Telecom
  • Year Founded: 1998
  • HQ Location: Toronto, CA
  • Twitter: @DiallogTelecom
    3,498 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    29 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Large

What Are Recent G2 Reviews of Diallog?

didforsale SIP Trunking

SIP Trunking is designed to provide efficient and cost-effective solutions to businesses to replace traditional phone lines.

Average Rating: 4.5/5.0

Total Reviews: 1

How Do G2 Users Rate didforsale SIP Trunking?

  • 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: 9.1/10)
  • VOiP Number: 10.0/10 (Category avg: 9.0/10)
  • Desk-to-Desk Calls: 5.0/10 (Category avg: 8.6/10)

Who Is the Company Behind didforsale SIP Trunking?

  • Seller: Cebod Telecom
  • Year Founded: 2015
  • HQ Location: Tustin, US
  • Twitter: @CebodT
    131 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    16 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Small

What Do G2 Reviewers Say About didforsale SIP Trunking?

AI-generated summary from verified user reviews

Pros
  • Users commend the affordability of Didforsale SIP Trunking, highlighting low prices and ease of use.
  • Users praise the ease of use of didforsale SIP Trunking, appreciating its simple option selection and low pricing.
  • Users appreciate the options variety of Didforsale SIP Trunking, enjoying customizable features and low pricing.
  • Users commend the reliability of didforsale SIP Trunking, enjoying consistent service without any quality issues.
Cons
  • Users find the lack of intuitiveness challenging for first-time use, making option selection confusing.

What Are Recent G2 Reviews of didforsale SIP Trunking?

DiFlex

DiFlex is a web CATI survey application, making a phone research process two times faster and cheaper. It will turns any browser into an outbound call center in minutes, where the operator will be able to call, fill out a questionnaire and track the results. ✅ Fast & cost efficient call center Software ✅ Purpose designed for easy way conducting simple or complex telephone research (CATI) ✅ No software installation and training ✅ All functions integrated in one window ✅ Two-way integration for transforming online survey into Professional CATI surveys ✅ Unique quota management tool

Average Rating: 5.0/5.0

Total Reviews: 1

Who Is the Company Behind DiFlex?

  • Seller: DiFlex
  • Year Founded: 2021
  • HQ Location: Tbilisi, GE
  • LinkedIn® Page: www.linkedin.com
    5 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 50% Medium, 50% Small

What Are Recent G2 Reviews of DiFlex?

Digital phone calls platform

PicUP's technology enables enterprises to personalize and optimize customers' incoming call screens for telesales, service calls, technician visits, and other outbound calls. Customers see exactly who is calling, and why, with a beautiful visual personalized message (call back, business offer etc.). Customers can also authenticate the caller, postpone the call, confirm appointments, or convert from call to digital chat. PicUP provides a transparent, personalized, safe and rich experience that increases sales by an average of 48%, reduces operational costs, enhances branding over phone calls, and more. We are active on +25M users and working with companies like Vodafone, TIM, Claro, AMEX and many more.

Average Rating: 5.0/5.0

Total Reviews: 1

How Do G2 Users Rate Digital phone calls platform?

  • Phone Calls: 10.0/10 (Category avg: 9.1/10)
  • VOiP Number: 10.0/10 (Category avg: 9.0/10)
  • Desk-to-Desk Calls: 10.0/10 (Category avg: 8.6/10)

Who Is the Company Behind Digital phone calls platform?

  • Seller: PicUP
  • Year Founded: 2018
  • HQ Location: Tel Aviv-Yafo, IL
  • LinkedIn® Page: www.linkedin.com
    15 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Medium

What Do G2 Reviewers Say About Digital phone calls platform?

AI-generated summary from verified user reviews

Pros
  • Users love the ability to make international calls easily and efficiently with the Digital phone calls platform.

What Are Recent G2 Reviews of Digital phone calls platform?

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