Cellular manager for mobile phones/modems
Web based system for Computer Assisted Telephone Interviewing (CATI)
Issabel PBX - Unified Communications
Unified Communications Server
Java VoIP Softphone (SIP) (replaced by jfPhone)
High performance, production quality STUN server and client library
H.323 Gatekeeper for VoIP and videconferencing
A command line utility for remote controlling Polycom VVX IP phones
An administration web interface for Mumble VoIP servers in PHP
ROMS & KERNEL by Javilonas
AT commands as input are sent to modem and responses given as output.
GNU Telephony Services and Applications
Positional Audio Communication for Minecraft with Mumble
1 on 1 Webcam Videochat Script with P2P Support