PHP version of Google's phone number handling library
Provide softphone support to AmazonConnect customers
Java wrapper for the popular chat & VOIP service
Issabel PBX - Unified Communications
VoIP/SIP SoftPhone (formerly known as jphonelite)
Web based system for Computer Assisted Telephone Interviewing (CATI)
Software per Call Center
Unified Communications Server
Cellular manager for mobile phones/modems
Java VoIP Softphone (SIP) (replaced by jfPhone)
High performance, production quality STUN server and client library
VoIP/SIP Autodialer
Accent interfaces and controls systems through goals and policies
Enterprise telephony recording and retrieval system
Skype language files for additonal languages (details below)
H.323 Gatekeeper for VoIP and videconferencing
A Discord BOT using Discord.js