Matrix reference homeserver
VoIP SIP and SKINNY quality analyzer and packet / audio recording tool
SMS, Fax, Voice Broadcasting and auto dialer Software
Open source Fax server software for inbound / outbound internet Faxing
VICIdial call center optimization tools, monitoring utilities, and per
ICTCore: Unified Communications Framework for web developers
Convert VoIP calls to text and analyze them with AI
Issabel PBX - Unified Communications
Modern, AI-Smart, WASTE p2p for ipv4, Tor and i2p + Voice Conference.
Unified Communications Server
Unified Communications System - PBX System
Project about FusionPBX on Live Medium
Accent interfaces and controls systems through goals and policies
http://www.vaakpbx.com
H.323 Gatekeeper for VoIP and videconferencing
SIP Video Multiconference Media Server with WebRTC support.
A command line utility for remote controlling Polycom VVX IP phones
Simple web interface for mapping CDR from VoIP provider to Asterisk
An administration web interface for Mumble VoIP servers in PHP