Build massively scalable soft real-time systems
Java wrapper for the popular chat & VOIP service
A domain based multi-tenant PBX & voice switch for FreeSWITCH
PHP version of Google's phone number handling library
Open-source event-driven AI powered Softphone
Provide softphone support to AmazonConnect customers
Matrix reference homeserver
A Swift framework for parsing and formatting phone numbers
Plugin for entering and validating international telephone numbers
The future of programmable SIP servers
An iOS client library for integrating multi-party communications
Issabel PBX - Unified Communications
VoIP SIP and SKINNY quality analyzer and packet / audio recording tool
VICIdial Contact Center Suite
The most affordable CRM system according to Capterra
Open source CSTA library
VoIP/SIP PBX system (formerly known as jPBXlite)
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