Browse free open source Telephony software and projects for Mac below. Use the toggles on the left to filter open source Telephony software by OS, license, language, programming language, and project status.
Issabel PBX - Unified Communications
A simple noise gate app intended for use with VOIPs like Skype.
Unified Communications Server
VICIdial Contact Center Suite
Open-source event-driven AI powered Softphone
Cellular manager for mobile phones/modems
Java wrapper for the popular chat & VOIP service
Sim Card explorer and decoder
Java VoIP Softphone (SIP) (replaced by jfPhone)
Enterprise telephony recording and retrieval system
AT commands as input are sent to modem and responses given as output.
High performance, production quality STUN server and client library