3CX Phone System

3CX is a software-based, open standards IP PBX that offers complete Unified Communications, out of the box.

• Easy to use, easy to install, feature rich Guest • Dec 2016 • 4 agrees and 2 disagrees Disagree   Agree
• It's a soft phone, not a VoIP server / exchange Guest • Sep 2017 • 3 agrees and 11 disagrees Disagree   Agree

Freemium $ $ $ Mac Windows Linux Web Android ... iPhone Microsoft Exchange Server Chrome Microsoft Office Suite Firefox

Wazo

Wazo is a unified communications platform based on Asterisk and focused on extensibility.

Free Open Source Mac Windows Linux Self-Hosted

FreeSWITCH

FreeSWITCH is a scalable open source cross-platform telephony platform designed to route and interconnect popular communication protocols using audio, video, text or any...

Free Open Source Mac Windows Linux BSD

Kamailio

Kamailio® (successor of former OpenSER and SER) is an open source SIP server released under GPL, able to handle thousands of call setups per second. Among features:...

Free Open Source Linux

Talkie.io

Free Click to Call. Receive web calls from your site free. Talkie is a free service to communicate with your customers visiting your website. Always free.

Free Mac Windows Linux

Starfish PBX

Starfish PBX aims to be an open source alternative to Digium’s Switchvox. The goal is to have a software equivalent to which we can add additional functionality like: ...

Free Open Source Linux

XiVO

XiVO is an IP-PBX, a unified communications platform that connects phones on a local or private network with other networks such as public landlines and mobile...

Free Open Source Mac Windows Linux

Voxibot the Voximal stack

The voice phone bot platform based on Asterisk and FreePBX propulsed by the Voximal VoiceXML interpreter.

Freemium Linux Web Self-Hosted Amazon Raspbian ... Raspberry Pi Microsoft Azure Docker

RingCentral

RingCentral delivers high quality, reliability and value that's expected by enterprise businesses through RingCentral Office, an all-inclusive cloud phone system...

Commercial Mac Windows Android iPhone

Dimelo By RingCentral

Leading brands use Dimelo SaaS software applications to make it easier to manage their online customer service activities. Dimelo by RingCentral clients enjoy lower...

Commercial Open Source Mac Windows Web Android iPhone ... Windows Phone

sipXcom

sipXcom provides complete enterprise-grade telephony, unified messaging, Instant messaging, audio conferencing, and many other features.

Free Open Source Linux

Yate - Yet Another Telephony Engine

Yate is a softswitch (concept of separating the network hardware from network software). It supports VoIP protocols: H.323, SIP, IAX1, IAX2, RTP. For the plain old...

• Carrier type services - not targeted as a PBX Guest • Feb 2017 Disagree   Agree

Free Open Source Linux

FusionPBX

FusionPBX is an open source FreeSWITCH GUI. FusionPBX can be used as a high available single or domain based multi-tenant PBX, carrier grade switch, call center server...

Free Open Source Linux BSD

Zent.io

Zent.io is a Contact Center Cloud Software Multichannel that unify chat, phone and e-mail. All the communication channels will be answered from a single interface. The...

Commercial $ $ $ Mac Windows Linux Web

VoipSwitch

VoipSwitch is a SoftSwitch System with routing and billing, with SIP protocol support (in older versions also H323). Basic package includes softswitch app, IVR app...

Commercial Windows