Open-source event-driven AI powered Softphone
VICIdial Contact Center Suite
Cellular manager for mobile phones/modems
Web based system for Computer Assisted Telephone Interviewing (CATI)
Issabel PBX - Unified Communications
Unified Communications Server
Unified Communications System - PBX System
Java VoIP Softphone (SIP) (replaced by jfPhone)
High performance, production quality STUN server and client library
Accent interfaces and controls systems through goals and policies
Enterprise telephony recording and retrieval system
H.323 Gatekeeper for VoIP and videconferencing
A command line utility for remote controlling Polycom VVX IP phones
Java VoIP/SIP PBX system (replaced by jfPBX)
IPTV Set-Top box in a small, low power, form factor.
An administration web interface for Mumble VoIP servers in PHP
AT commands as input are sent to modem and responses given as output.