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.HERO Hosted PBX1https://media.trustradius.com/product-logos/3l/Xp/0N54X1TS2CD7.pngVoxeet2https://media.trustradius.com/product-logos/yf/St/EU85MRT90O1U.jpegAvaya Aura Platform3https://media.trustradius.com/vendor-logos/dB/Ik/GI6Q0DC0R20P-180x180.PNGMondoTalk4https://media.trustradius.com/product-logos/54/Za/S7I2DNAR96KA.PNGChoiceView Live Agent5https://media.trustradius.com/product-logos/Xd/qp/SHK2UG9TVTTG.pngSuper Receptionist6https://media.trustradius.com/product-logos/I8/zl/FQV8HVLUK42M.jpegHERO Hospitality PBX7https://media.trustradius.com/product-logos/zo/DC/8CMUHE7EZISG.pngPhone Power8https://media.trustradius.com/vendor-logos/VB/ta/RG92FH2MOLTJ-180x180.JPEGRTW Voice9https://media.trustradius.com/product-logos/eo/GY/J48OHOFMV0ST.gifZello for Work10https://media.trustradius.com/product-logos/TU/CU/3AQJI2O8BBT0.PNGIceWarp11https://media.trustradius.com/product-logos/Tr/wD/6ETGHC8L1RQF.jpegKamailio SIP Server12https://media.trustradius.com/product-logos/39/Qj/XNLKHVAUC7IO.jpegAdtran NetVanta13https://media.trustradius.com/product-logos/sj/i3/LQS9XM01DML6.jpegFathom Connect14https://media.trustradius.com/vendor-logos/M1/T1/TPTAPVZUVXO7-180x180.PNGOpenScape Voice15https://media.trustradius.com/vendor-logos/5N/A7/7RX2SF5X2KVD-180x180.PNGPhonedeck16https://media.trustradius.com/vendor-logos/uN/Xx/TQOXZWPVSPJJ-180x180.PNGMessageMedia SMS17https://media.trustradius.com/product-logos/8f/B5/S8KVS3SAISU7.PNGTeleWare IP Telephony and Unified Communications18https://media.trustradius.com/product-logos/J9/hD/2MRK3A2IINJR.pngTata Unified Communications19https://media.trustradius.com/vendor-logos/9d/Ph/EI24Z9N3FB7C-180x180.PNGActivePBX20https://media.trustradius.com/product-logos/DW/4L/ABM14T7GHSVE.pngCloudCall21https://media.trustradius.com/vendor-logos/m3/lz/Z741D3DZU0PH-180x180.PNGCogi Call Recording22https://media.trustradius.com/product-logos/Jj/Zi/56FHCBT5R4LF.pngK723https://media.trustradius.com/product-logos/UE/ZX/9QWN4Q96GH4C.jpegNet2Phone24https://media.trustradius.com/product-logos/O8/JH/T3WWZHQX6P4L.pngTelonium25https://media.trustradius.com/product-logos/qw/gv/AZ6TB0GCJB37.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 (51-75 of 125)

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

Voxeet is a telephony and VoIP software solution from Voxeet.

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

MondoTalk operates an IP Telephony network with servers around the world. They specialize in integrating office phone systems with mobile handsets, enabling the use a single handset anywhere.

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

Phone Power is a telephony and VoIP software solution from Fabasoft Cloud GmbH.

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

RTW Voice is a telephony and VoIP software solution from Road To Work Hosting.

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

Zello for Work is designed to turn any smartphone into a user-friendly push-to-talk (PTT) device on any network. This can be done with the user’s existing smartphones or ruggedized devices. Zello users can speak in groups or to direct contacts, decreasing nonessential noise in the work environme...

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

IceWarp, from the company of the same name headquartered in Springfield, Virginia, is an email applications and unified communications offering.

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

Adtran, headquartered in Huntsville, Alabama, offers NetVanta, a suite of products including IP communication platforms.

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

Fathom Connect is a cloud based phone system with no hardware. The network is mirrored across servers spread across the United States and internationally. The vendor says this approach guarantees 99.99% uptime for their customers.  Fathom Connect pricing is straightforward with no hidden fees.  ...

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

OpenScape Voice, formerly Siemens OpenScape, from German headquartered company Unify (a collaboration betweem Siemens AG and the Gores Group) is a unified communications platform with VoIP.

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

Phonedeck is a solution that integrates mobile telephony into CRM systems like Salesforce or Oracle. It is a mobile CTI solution that lets users control their smartphone inside the CRM system and track their mobile calls. Phonedeck is available for Salesforce and Oracle users.Phonedeck supports s...

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

MessageMedia offers enterprise communications via SMS. The company says it serves 15,000 clients worldwide including Fortune 100 financial services, healthcare, and technology companies, as well as government and non-profit entities. According to the vendor, key values include reliability, as wel...

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

Tata Communications is a modular unified communication platform for global voice, unified conferencing, managed services, and communication APIs through its tier-1 IP netework available in five continents.

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

ActivePBX is a telephony and VoIP software solution from ActiveServe, Inc.

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

CloudCall is a telephony and VoIP software solution from the British company of the same name (formerly SYNETY).

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

K7 is a telephony and VoIP software solution from International Telcom LTD.

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

Net2Phone is a telephony and VoIP software solution from Net2Phone.

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

Telonium is a telephony and VoIP software solution from Telonium.