Matrix reference homeserver
Java wrapper for the popular chat & VOIP service
Issabel PBX - Unified Communications
ICTCore: Unified Communications Framework for web developers
Open source Fax server software for inbound / outbound internet Faxing
Modern, AI-Smart, WASTE p2p for ipv4, Tor and i2p + Voice Conference.
Browse on Tor/i2p, Anon p2p Chat / FileTx, Conf / Video VoIP
SMS, Fax, Voice Broadcasting and auto dialer Software
Convert VoIP calls to text and analyze them with AI
Unified Communications Server
Unified Communications System - PBX System
Java VoIP Softphone (SIP) (replaced by jfPhone)
High performance, production quality STUN server and client library
VoIP/SIP Autodialer
Kazoo Live Medium. From Null to a Full Featured PBX on minutes
AstCDR
Accent interfaces and controls systems through goals and policies
Skype language files for additonal languages (details below)
H.323 Gatekeeper for VoIP and videconferencing