Browse free open source Telephony software and projects for BSD below. Use the toggles on the left to filter open source Telephony software by OS, license, language, programming language, and project status.
VoIP SIP and SKINNY quality analyzer and packet / audio recording tool
Unified Communications Server
A simple noise gate app intended for use with VOIPs like Skype.
VICIdial Contact Center Suite
A domain based multi-tenant PBX & voice switch for FreeSWITCH
The most affordable CRM system according to Capterra
Go to github.com/vlm/asn1c for the latest version.
Cellular manager for mobile phones/modems
H.323 Gatekeeper for VoIP and videconferencing