Java wrapper for the popular chat & VOIP service
Matrix reference homeserver
Issabel PBX - Unified Communications
VoIP SIP and SKINNY quality analyzer and packet / audio recording tool
Modern, AI-Smart, WASTE p2p for ipv4, Tor and i2p + Voice Conference.
SMS, Fax, Voice Broadcasting and auto dialer Software
Open source Fax server software for inbound / outbound internet Faxing
Convert VoIP calls to text and analyze them with AI
ICTCore: Unified Communications Framework for web developers
Unified Communications Server
Unified Communications System - PBX System
Java VoIP Softphone (SIP) (replaced by jfPhone)
Project about FusionPBX on Live Medium
Free software and hardware for telephony
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