Provide softphone support to AmazonConnect customers
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
Matrix reference homeserver
Issabel PBX - Unified Communications
VoIP SIP and SKINNY quality analyzer and packet / audio recording tool
VICIdial Contact Center Suite
Remote control software for applications using Bluetooth or Wi-Fi.
Web based system for Computer Assisted Telephone Interviewing (CATI)
The most affordable CRM system according to Capterra
VoIP/SIP SoftPhone (formerly known as jphonelite)
Open source CSTA library
Modern, AI-Smart, WASTE p2p for ipv4, Tor and i2p + Voice Conference.