PHP version of Google's phone number handling library
Matrix reference homeserver
VoIP SIP and SKINNY quality analyzer and packet / audio recording tool
Web based system for Computer Assisted Telephone Interviewing (CATI)
Modern, AI-Smart, WASTE p2p for ipv4, Tor and i2p + Voice Conference.
Software per Call Center
CM8200/SB8200
An open source 3GPP LTE implementation.
VAP 4641
open5g is an open source implementation of the 3GPP 5G specifications.
Cellular manager for mobile phones/modems
Frontend for ModemManager 0.6/0.7, Wader and oFono
Sim Card explorer and decoder
Blocks unwanted calls using caller ID and a modem
Multi user address book application accessable through the web.
H.323 Gatekeeper for VoIP and videconferencing
SIP Video Multiconference Media Server with WebRTC support.
Callflow Sequence Diagram Generator
A command line utility for remote controlling Polycom VVX IP phones
An administration web interface for Mumble VoIP servers in PHP