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VoIP reviews by real, verified users. Find unbiased ratings on user satisfaction, features, and price based on the most reviews available anywhere.

Best VoIP Providers for Medium-Sized Businesses

    Products classified in the overall VoIP category are similar in many regards and help companies of all sizes solve their business problems. However, medium-sized business features, pricing, setup, and installation differ from businesses of other sizes, which is why we match buyers to the right Medium-Sized Business VoIP to fit their needs. Compare product ratings based on reviews from enterprise users or connect with one of G2's buying advisors to find the right solutions within the Medium-Sized Business VoIP category.

    In addition to qualifying for inclusion in the VoIP Providers category, to qualify for inclusion in the Medium-Sized Business VoIP Providers category, a product must have at least 10 reviews left by a reviewer from a medium-sized business.

    Top 10 VoIP Providers for Medium-Sized Businesses

    • Nextiva
    • 3CX
    • Dialpad Talk
    • Vonage Business Communications
    • GoToConnect (formerly Jive)
    • Switchvox
    • GlobalMeet Collaboration
    • Aircall
    • RingCentral
    • X Series (Formerly Virtual Office)

    Compare Medium-Sized Business VoIP Providers

    G2 takes pride in showing unbiased reviews on user satisfaction in our ratings and reports. We do not allow paid placements in any of our ratings, rankings, or reports. Learn about our scoring methodologies.
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    (267)4.4 out of 5
    Optimized for quick response
    Entry Level Price:$18.95 as low as

    Nextiva is a platform that brings communications together with business applications, intelligence, and automation. This helps businesses communicate and build deeper connections with their customers. The platform brings all communication channels — voice, video, collaboration, SMS, chat, and surveys — together in one place. This helps businesses access the information they need to provide amazing customer experiences and drive business results. Intelligence and automation are built in, so you

    3CX is the developer of an open standards communications solution which innovates business connectivity and collaboration and replaces proprietary PBXs. The award-winning software enables companies of all sizes to cut telco costs, boost employee productivity, and enhance customer experience. With integrated WebRTC video conferencing; apps for Android, iOS, the web and desktop; a full suite of collaboration features, and website live chat, 3CX offers companies a complete communications package o

    (627)4.3 out of 5
    Optimized for quick response

    Built entirely from the ground up on Google Cloud Platform, Dialpad Talk is a business phone system that provides unmatched mobility, flexibility, and security to more than 62,000+ of the world’s most innovative businesses. Dialpad Talk includes native Voice Intelligence features like real-time transcription and post-call summaries with highlighted action items. Dialpad directly integrates with other business-critical cloud applications such as G Suite, Salesforce, and Zendesk for maximum produc

    (293)4.3 out of 5
    Optimized for quick response

    Work smarter with Vonage Business Communications, our unified communications platform: seamlessly connect via voice, messaging and video, virtually anywhere around the globe. Over 40 powerful features give you the right balance of flexibility and control, offering everything your business needs to work smarter. With our award-winning mobile app, you can manage your communications from any device, and collaborate from virtually anywhere. We boast a 99.999% uptime reliability¹, ensuring the maximu

    (641)4.5 out of 5
    Optimized for quick response
    Entry Level Price:$19.95 per user

    GoToConnect combines Jive's VoIP phone systems with GoToMeeting's web, audio and video conferencing into one simple Unified Communications platform (Voice, Video, and Contact Center). For as low as $19.95 a month, GoToConnect eliminates the hassle and expense of managing multiple collaboration solution providers.

    (243)4.2 out of 5
    Entry Level Price:$19.99 per seat

    Switchvox is the award-winning business phone system solution built on the power of Asterisk with thousands of installation worldwide. With Switchvox, you can deploy your communications system according to your business needs - on a dedicated appliance, in a virtual environment, or in the cloud. The combination of Switchvox and D-series phones provides a complete (UC) solution for small and mid-sized businesses by integrating all of your office communications, include phone, fax, chat, and we

    (502)4.2 out of 5
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    Entry Level Price:FREE

    GlobalMeet Collaboration delivers a superior meeting experience for one-on-one meetings, team check-ins and much more. Our comprehensive video conferencing software allows you to start online meetings in one click without downloads. With GlobalMeet Collaboration, video conferencing is instant, free and works anywhere you are.

    Aircall is the cloud-based phone system of choice for modern brands. By seamlessly integrating with the most popular CRM and Helpdesk tools, we help sales and support teams with 3+ users communicate clearly and efficiently. Admins can instantly add numbers from 100+ countries, scale their teams according to seasonality, and gain deep insights through real-time analytics. Accessible by desktop and mobile app, Aircall is trusted by over 5000 companies worldwide. Start a risk-free trial to see Airc

    (299)3.8 out of 5
    Optimized for quick response
    Entry Level Price:$19.99 monthly per user

    RingCentral harnesses the power of the cloud to help today’s modern, mobile businesses communicate faster, smarter, and more effectively than ever before. Built on a secure and reliable cloud communication and collaboration platform, RingCentral goes beyond cloud PBX, combining voice, team messaging, collaboration, video conferencing, online meetings, and contact center capabilities. Available across multiple devices—from smartphones, tablets, and computers to desk phones RingCentral’s unified

    8x8 X series promises smarter, more efficient ways to connect with customers and employees. 8x8 says its X Series delivers a powerful Unified Communications platform that provides one solution for voice, video and chat across any device, anytime and anywhere. The vendor says 8x8 X Series includes these communication tools: • Cloud phone service—Reliable, feature-rich cloud based phone service • Advanced call forwarding—Never miss an important call again by forwarding your office calls to your

    With Cisco Voice and Unified Communications, you can unify all your voice, video, data, and mobile applications for interactive collaboration.

    (105)4.2 out of 5
    Optimized for quick response

    As the global market leader in calling, Cisco Webex Calling offers the scalability, reliability and security demanded by enterprise accounts. With hundreds of PBX features, HD audio and video, and rich interoperability, Webex Calling offers the flexibility to move your business to the cloud at your own pace, in one or multiple stages.

    (43)4.0 out of 5

    Avaya IP Office is a VoIP solution.

    (204)3.8 out of 5
    Optimized for quick response
    Entry Level Price:$20.99 /user/month

    Talk. Chat. Collaborate. Interact. MiCloud Connect is a full-featured collaboration and communication solution that empowers users to work more efficiently and productively no matter their location. Our focus on ease-of-use and the mobile workstyle delivers streamlined features and intuitive interfaces so users can easily interact with each other and not have to focus on making the software work.

    (101)4.8 out of 5
    Entry Level Price:$70 month per company

    At Loop Communications, our core focus is to provide hosted business phone systems to small businesses and mid-sized companies. We've built an enterprise-class, cloud-based business phone system that works around your needs rather than the limitations of antiquated hardware or constraining policies. Our customers save an average of 40 to 60 percent per month over a traditional landline, as Loop charges just $17 per month for an extension. No matter how many extensions or where they may be, eac

    (34)4.6 out of 5
    Optimized for quick response

    Bria (formerly X-Lite) is a softphone solution designed to extend the capabilities of your call server, PBX, or VoIP service so you can take calls anywhere on both desktop and mobile devices, and augment your communications with team messaging, HD video conferencing and screen sharing capabilities, hosted by CounterPath. Experience crystal clear audio and HD, 1080p video calls whether in your office or on-the-go; and manage calls easily with intuitive call recording, music on hold, and call tra

    (52)4.6 out of 5
    Entry Level Price:$0.02 per minute

    Build Voice, Video and Text Applications Easily With Asterisk, The World's Most Widely Adopted Open Source Communications Software Development Framework. Asterisk is an open source framework for developing state-of-the-art communications applications. Asterisk includes hundreds of pre-built components that handle the complex, low-level details of voice, video, and text communications. Developers use Asterisk to create custom communications solutions and to build innovative communications produc

    (74)3.9 out of 5

    The MiVoice Business phone system is designed to meet the needs of businesses from 5 to 65,000 users, whether they have a single site or multi-site networks that span the globe.

    (231)4.3 out of 5

    CloudTalk is user-friendly cloud-based phone software for sales and support teams. It is used by startups, scale-ups, SMEs or eCommerce to improve customer experiences and team performance. To achieve this, CloudTalk provides more than 50 advanced calling features. Thanks to seamless integration with the favourite tools (such a CRM, Helpdesk, or e-commerce platforms, etc.), CloudTalk helps companies deliver first-class customer experiences, resulting in the growth of their profitably. Cloudtalk

    (100)3.4 out of 5
    Optimized for quick response

    At Fuze, we want to change the way people communicate so they can do their best work. With the modern workforce in mind, we’ve created one platform that empowers people to seamlessly transition between calling, meeting, chatting, and content sharing, and collaborate on any device, whenever and wherever they choose.

    (102)4.6 out of 5
    Optimized for quick response

    Unleash the Power of Professional Conversations. Truly is the all-in-one enterprise voice platform bringing rep productivity, global telephony, and realtime conversation intelligence together with one tool. Organizations use Truly to clean up their voice stack. Get more conversations and cleaner data for your team while saving on cost. As the only inbound and outbound voice solution, Sales and IT leaders alike love using Truly. Truly works everywhere, captures all your call data, and maximiz

    (56)4.2 out of 5

    (86)4.1 out of 5
    Entry Level Price:$14 /User /Month

    CallHippo is a next-generation business phone system that helps you connect with your customers.CallHippo is easy-to-use while offering robust functionality with advanced features like Power Dailer and Automatic call distribution. Our Extensive reporting and seamless integrations empower sales and service teams to have effective conversations with customers. Providing World-Class support 24*7 and Accessible by desktop and mobile-app, CallHippo is trusted by over 5000 companies worldwide.

    (15)3.9 out of 5

    Ease of use with a modern Graphical User Interface

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    Check out the G2 Grid® for the top VoIP Providers products. G2 scores products and sellers based on reviews gathered from our user community, as well as data aggregated from online sources and social networks. Together, these scores are mapped on our proprietary G2 Grid®, which you can use to compare products, streamline the buying process, and quickly identify the best products based on the experiences of your peers.
    Leaders
    High Performers
    Contenders
    Niche
    GlobalMeet Collaboration
    RingCentral
    Cisco
    Vonage Business Communications
    MiCloud Connect
    Asterisk
    Switchvox
    GoToConnect (formerly Jive)
    Fuze
    Aircall
    Truly
    3CX
    Dialpad Talk
    CallHippo
    Loop Communications
    Avaya IP Office
    MiVoice Business
    Nextiva
    MiVoice Connect
    Bria
    Cisco Webex Calling
    X Series (Formerly Virtual Office)
    CloudTalk
    Ekiga
    Market Presence
    Satisfaction

    Learn More About VoIP Providers

    What is VoIP Software?

    Voice over internet protocol (VoIP) software transfers phone calls and video calls between internet-enabled devices or from one internet-enabled device to a landline. They can also be used to share screens, files, and engage parties in live chats. The communications are turned into data that are transmitted in much the same way we transmit email or other internet conversations. In layman’s terms, it can be thought of as an “internet telephone" which uses an internet connection instead of traditional telephone lines.

    VoIP providers, also known as virtual phone systems, can help companies significantly cut down communication costs. VoIP service providers enable companies to make international or overseas audio and video calls without the expensive payments associated with a landline plan. It’s also a more flexible solution that allows employees to communicate remotely or when otherwise away from their typical office space.

    When purchasing a VoIP product, it is important to determine if an onsite or cloud-based solution is better suited for your business. Cloud-based, or hosted, VoIP software typically requires no additional hardware and delivers calls to phones installed at your business, but it comes with a higher monthly cost than onsite VoIP options. Furthermore, most cloud-based VoIP products offer mobile applications that integrate with your business phones and allow you to make and receive calls using your data connection while traveling.

    Onsite VoIP systems require supplemental hardware that must be purchased up front, but it can compensate for this by offering a lower monthly cost, additional security, and more flexibility during setup. Onsite VoIP systems need both an IP-based private branch exchange (IP-PBX) and a public switched telephone network (PSTN) gateway device to function properly. The IP-PBX routes your calls to the correct phones on your network, while the PSTN gateway device converts calls from the analog signals of the PSTN to digital signals for the IP-PBX and back, as necessary.

    Who Uses VoIP Software?

    Although many people have experience using video calling platforms for personal use, VoIP products are intended to be professional solutions for meetings and conferences. Virtual phone systems must be able to share some combination of audio calls, video calls, pictures, screens, and messages.

    Virtual phone systems can be utilized through both public and private networks. Private networks are known to produce more reliable calls. They are accessible through various devices such as tablets, mobile devices, and desktops. They can also integrate with conference rooms to include an entire room full of people in a meeting.

    VoIP Software Features

    Phone Calls — Enables users to place phone calls over the internet.

    Instant Messaging — Enables users to send instant messages over the internet.

    Screen Sharing — Enables users to share screens over the internet.

    Video Calls — Enables users to place video calls over the internet.

    Desk-to-Desk Calls — Enables users to contact one another through mobile phones and landlines.

    Conference Calls — Enables multiple users to make phone or video calls over the internet at once.

    VoIP Number — Offers users a unique number that can be dialed from anywhere.

    Potential Issues with VoIP Software

    VoIP Depends on the Quality of Your Network — VoIP systems rely on high-speed internet to function, and that is a key piece of information to keep in mind as you decide on the VoIP product for your business. As your VoIP usage increases or telephone lines are added, your internet bandwidth usage will increase accordingly. If your bandwidth usage exceeds its limits, your quality of service (QoS) can suffer.

    Furthermore, if you suffer a power failure or internet outage, your VoIP phone service will be unable to make or receive calls, unlike with traditional PBX. Nevertheless, with a cloud-based VoIP product, you may be able to receive calls on your mobile device or have messages forwarded to your email or voicemail.

    Call Limitations — Another consideration you should make prior to choosing VoIP software is that many products are limited in terms of their ability to make emergency and international calls. Some VoIP products do not provide emergency call services, such as the 911 service, and those that do often do so for an additional charge or subscription fee.

    The reliability of calling internationally with some VoIP products can also prove questionable at times, though per-minute rates are generally competitive and most offer unlimited calling in the United States and Canada. However, certain calls (such as those to mobile phones outside of your network) may incur an additional charge.

    Up-Front Costs — There are some up-front costs to consider when choosing VoIP software, moreso with onsite products than cloud-based ones. With both onsite and cloud-based VoIP products, one relevant cost is the number of session initiation protocol (SIP)-enabled telephones. These telephones are assigned to each user in your business and allow the IP-PBX that is either on site or cloud based to route calls to specific lines.

    If you want to use non-SIP-enabled phones or fax machines, you will need to purchase an analog telephone adapter (ATA), but you will not be able to use some of the advanced VoIP features such as automated attendants, call queues, and email integration available with SIP-enabled telephones. With onsite VoIP systems, both the IP-PBX and the PSTN gateway device require one-time fees for the hardware as well as any fees for the installation of the devices.