Best VoIP Providers96Voice over Internet Protocol is a category of hardware and software that enables people to use the Internet as the transmission medium for telephone calls.Versature1https://media.trustradius.com/product-logos/2Z/ts/3LXU4TDVS3JG.pngvocalnet2https://media.trustradius.com/product-logos/bQ/YS/TUAV2SADPBL5.pngVoiceLink3https://media.trustradius.com/product-logos/Q0/7N/2IIJLIT0B8RA.pngConnect First Contact Center Solution4https://media.trustradius.com/product-logos/iz/vI/0TCOA251M69U.PNGClearspan5https://media.trustradius.com/vendor-logos/qI/61/XTPUVMKJ8758-180x180.PNGMiVoice MX-ONE6https://media.trustradius.com/vendor-logos/qI/61/XTPUVMKJ8758-180x180.PNGNEC Univerge 3C7https://media.trustradius.com/vendor-logos/V7/VJ/1803CSTL26SA-180x180.PNGMiCloud Flex8https://media.trustradius.com/vendor-logos/qI/61/XTPUVMKJ8758-180x180.PNGMiVoice Office 2509https://media.trustradius.com/vendor-logos/qI/61/XTPUVMKJ8758-180x180.PNGMiVoice Business10https://media.trustradius.com/vendor-logos/qI/61/XTPUVMKJ8758-180x180.PNGOpenTouch Business Edition11https://media.trustradius.com/vendor-logos/CK/NN/VITEIBTNAZGV-180x180.JPEGToshiba Strata CIX12https://media.trustradius.com/vendor-logos/zA/8a/2JXKPG7TDGUG-180x180.JPEGToshiba IPedge13https://media.trustradius.com/vendor-logos/zA/8a/2JXKPG7TDGUG-180x180.JPEGStarBox Voice Optimized SD-WAN (formerly Cloud Connection Manager)14https://media.trustradius.com/product-logos/Cs/z4/BPOLX7B4SDL9.PNGDial Gate PBX Softswitch & Billing Server15https://media.trustradius.com/product-logos/aV/T9/5JMR6W0JO0LE.pngDial Office IP-PBX16https://media.trustradius.com/product-logos/Y9/rs/24LW4PLULEUS.pngPlivo Inc17https://media.trustradius.com/product-logos/Tj/c6/26PC38A10LVN.JPEGOpenScape Business18https://media.trustradius.com/vendor-logos/5N/A7/7RX2SF5X2KVD-180x180.PNGOpenScape Enterprise Express19https://media.trustradius.com/vendor-logos/5N/A7/7RX2SF5X2KVD-180x180.PNGOmniPCX Enterprise Communications Server20https://media.trustradius.com/vendor-logos/CK/NN/VITEIBTNAZGV-180x180.JPEGHuawei eSpace Unified Communication Solutions21https://media.trustradius.com/vendor-logos/AG/vw/4MOX29P1S10T-180x180.JPEGToshiba UCedge Unified Communications22https://media.trustradius.com/vendor-logos/zA/8a/2JXKPG7TDGUG-180x180.JPEGAVOXI Core23https://media.trustradius.com/product-logos/lX/K1/SR0E3268LU6E.jpegMightyCall24https://media.trustradius.com/product-logos/eU/pR/7JLH8TEWVVAA.JPEGCallHub25https://media.trustradius.com/product-logos/MX/XM/2BC86BU4FSJO.PNG

Best VoIP Providers

TrustMaps are two-dimensional charts that compare products based on satisfaction ratings and research frequency by prospective buyers. Products must have 10 or more ratings to appear on this TrustMap.

VoIP Providers Overview

What is VoIP Technology?

VoIP stands for Voice over Internet Protocol. It is technology for delivering voice and other forms of communication over an Internet Protocol or IP. VoIP providers offer communications services that the business world relies on for collaboration. Typically, phone, video conferencing, and live chat are conducted on the VoIP platform, without assistance from the public switched telephone network (PSTN). There are also hybrid solutions that combine VoIP with PSTN.


VoIP presents the underlying technology for Unified Communications Platforms.

Benefits of IP Telephony

Compared to regular telephone networks, IP telephony aims to be:

  • Cheaper

  • Simpler

  • More scalable

  • Higher-availability

  • Equally or more reliable

VoIP Providers vs. Unified Communications as a Service

Some VoIP providers are geared for SMBs who want a business phone with advanced telephony-type features and maybe some conferencing capability or minutes.


More sophisticated providers offer a highly scalable, end-to-end unified communications platform designed for larger enterprises. These UCaaS vendors tend to offer more reach and flexibility compared to point tools for collaboration, live chat, and web conferencing. They also aim to encompass all communication within the enterprise and across its boundaries, including integrated contact center functionality.


The top vendors offer both a unified communications platform as well as a low-cost VoIP solution.

VoIP Provider's Features & Capabilities

VoIP Providers generally support the following functions:


Cloud PBX:

  • Hosted PBX

  • Multi-level Interactive Voice Response (IVR)

  • User templates

  • Call reports

  • Directory of employee names


Call Management:

  • Answering rules

  • Call recording

  • Call park

  • Call screening

  • Message alerts


VoIP System Collaboration:

  • Video conferencing

  • Audio conferencing


Mobile Apps:

  • Mobile app for iOS

  • Mobile app for Android


Advanced Features:

  • Integration with contact & customer information systems (e.g. CRM, Outlook, etc)

  • Internet faxing

  • Ring group (splitting calls or rotating them within a group of employees)

Additional Factors to Consider

Security: Authorization, Authentication, Transport Layer Security (TLS), Media encryption (SRTP)

IP networks can be vulnerable. So, various methods of providing communication privacy and security should be considered. Vendors may vary in how they attempt to secure communications.

Business Phones & other Hardware Components

Vendors must offer hardware to support their platforms' capabilities, such as phones, headsets, servers, and other infrastructural devices. Subtle differences between these devices may contribute to very similar and relatively equal software platforms being perceived very differently in terms of quality or fit. Therefore, these subtleties should not be discounted.

Call & Communications Analytics

A great deal of data is transmitted through these systems. So, some software provides analytics to evaluate agent, channel, and call performance. These analytics can be used to seek out inefficiencies or anomalies, endpoint status, and more. Integration with VoIP analytics platforms might help monitor system performance.

Field, Telework & Telecommute

One potential benefit of VoIP and virtual offices is the ability to interact with personnel (or support personnel as they interact with customers) as though they were in the office. This includes dashboard interfaces, a reliable connection, quality streaming, and security protocols and methods (e.g. Virtual Private Network / VPN). Products may vary in their ability to function outside the boundaries of the enterprise.

Pricing Information

VoIP providers often charge on a per month, per user basis. Prices generally start at around $20 per month, per user, and will increase from there with more advanced features.


Another factor to consider in the cost structure is the hardware. Many providers offer hardware rental as part of their service, at additional cost.

More Resources

VoIP Products

Listings (76-100 of 125)

We don't have enough ratings and reviews to provide an overall score.

Versature is a telephony and VoIP software solution from Versature.

We don't have enough ratings and reviews to provide an overall score.

vocalnet is a telephony and VoIP software solution from VocalNet.

We don't have enough ratings and reviews to provide an overall score.

VoiceLink is a telephony and VoIP software solution from Voice Link.

We don't have enough ratings and reviews to provide an overall score.

ACD - Gain total control over your inbound call flow with the Inbound Call Routing Platform. Key features such as skills-based agent selections, flexible scheduling, and our proprietary QueueFlow routing engine ensure you can easily route calls to follow your exact specifications. Our management ...

We don't have enough ratings and reviews to provide an overall score.

Clearspan, formerly Aastra Clearspan but now owned and supported by Mitel (since 2014), is a unified communications platform offered by the Canadian company as viable for enterprises with 1,500 to 100,000 potential users.

We don't have enough ratings and reviews to provide an overall score.

MiVoice MX-ONE, formerly Aastra MX-One, is now owned and supported by Mitel since the merger (January, 2014); it's a unified communications platform.

We don't have enough ratings and reviews to provide an overall score.

MiCloud Flex is a cloud-based (or hybridized) unified communications service, from Canadian company Mitel.

We don't have enough ratings and reviews to provide an overall score.

MiVoice Office 250, formerly Aastra 5000, is a VoIP unified communications platform offered by Canadian company Mitel for SMBs with mobile or dispersed workforces.

We don't have enough ratings and reviews to provide an overall score.

MiVoice Business is a unified communications platform from Canadian Mitel Networks Corporation, for businesses with 5 to 65,000 potential users.

We don't have enough ratings and reviews to provide an overall score.

Toshiba's Strata CIX is an IP communications platform that supports legacy digital technology as well, for companies that want to continue using legacy equipment or move to an IP based model in a less total and immediate fashion.

We don't have enough ratings and reviews to provide an overall score.

StarBox Voice Optimized SD-WAN from Star2Star Communications utilizes a hybrid architecture that combines aspects of cloud-based and on-premise unified communication systems. The StarBox appliance manages the traffic flow between your Star2Star phone system and Internet connection to provide high...

We don't have enough ratings and reviews to provide an overall score.

Plivo’s Voice and SMS API platform and global carrier services, enable access to quality cloud communications at a low cost. Plivo’s HTTP APIs let businesses add voice and SMS capabilities to any web or mobile app using any web standard language. The platform offers carrier management, call quali...

We don't have enough ratings and reviews to provide an overall score.

OpenScape Business is a unified communications offering from Unify (formerly Siemens Enteprise Communications), combining telephony & VOIP, web & video conferencing, and messaging in one integrated platform targeted at SMBs.

We don't have enough ratings and reviews to provide an overall score.

OpenScape Enterprise Express from Unify (formerly Siemens Enterprise Communications) is an all-in-one unified communications platform combining all modes of collaboration (video & web conferencing, messaging, and VOIP) under one platform, targeted at enterprises with 200 to 2000 employees.

We don't have enough ratings and reviews to provide an overall score.

MightyCall is a virtual phone system for small business and entrepreneurs. According to the vendor, key benefits include: Get a virtual US/CA Toll-Free phone number for your business Make it easy for your site visitors & potential customers to get in touch Automatically forward your customer...

We don't have enough ratings and reviews to provide an overall score.

CallHub is designed to integrate with an organization’s CRM. According to the vendor this solution enables users to reach the right people the right time with their virtual call center, voice and SMS broadcasting software. CallHub is available in over 200 countries. According to the vendor, key...