PBX in a Flash
PBX in a Flash is a PBX system based on Asterisk, FreePBX and CentOS, coming as an ISO download.
18 Alternatives To PBX in a Flash
3CX Phone System
3CXPhone is a free VoIP phone available for Windows, iPhone or any Android based smart phone such…
Asterisk
An open source telephony switching and private branch exchange service for Linux.
AsteriskNOW
AsteriskNOW is the fastest way to get started building custom telephony solutions with Asterisk.
Calabrio ONE
Calabrio ONE is a comprehensive and fully integrated customer engagement contact center solution to fuel top-line growth.
Convoso
Convoso’s Cloud Contact Center helps SMBs increase sales, marketing and customer service success.
FreeSENTRAL
FreeSentral is a full IP PBX consisting of a Linux Distribution, an IP PBX and a Web Graphical User…
HoduCC
HoduCC is a FreeSWITCH based product which offers contact center softwares for call centers.
Issabel
Your Open Source Solution For Unified Comunnications And More…
Jitsi
Open-source video calling and chat platform.
Pidgin
Pidgin is an easy to use and free chat client used by millions. Connect to AIM, MSN, Yahoo, and more chat networks all at once.
RingCentral
RingCentral is the leading provider of cloud-based communications and collaboration solutions for small business and enterprise companies
Starfish PBX
Starfish PBX aims to be an open source alternative to Digium’s Switchvox.
The Incredible PBX
Incredible PBX is a secure and feature-rich implementation of the Asterisk® PBX.
Twilio
Brings voice and messaging to your web and mobile applications.
VitalPBX
VitalPBX is a full-feature PBX (phone system) based on Linux and Asterisk.
Wazo
Wazo is a unified communications platform based on Asterisk and focused on extensibility.
freepbx
FreePBX is a web-based open source GUI that controls and manages Asterisk (PBX).
opensips
OpenSIPS (Open SIP Server) is a mature Open Source implementation of a SIP server.