VoIP SIP and SKINNY quality analyzer and packet / audio recording tool
Open source Fax server software for inbound / outbound internet Faxing
Free, native Windows SIP softphone with HD audio, SRTP encryption
Browse on Tor / i2p - Anon p2p Chat / FileTx, Conf / Video VoIP
SMS, Fax, Voice Broadcasting and auto dialer Software
A WebRTC-Enabled Chrome Extension for Seamless Call Center
ICTCore: Unified Communications Framework for web developers
Unified Communications Server
Unified Communications System - PBX System
Java VoIP Softphone (SIP) (replaced by jfPhone)
This is a PBX dashboard showing the peer,queue,agent at real time
Free software and hardware for telephony
High performance, production quality STUN server and client library
Asterisk based VoIP pbx appliance
Kazoo Live Medium. From Null to a Full Featured PBX on minutes
Scan all CISCO phones in your LAN to get their information
AstCDR
Accent interfaces and controls systems through goals and policies