Asterisk - An open source telephony switching and private branch exchange service for Linux.
Qualyon - Speak freely! Qualyon is an AI based insurance focused voice conversation system that can handle calls from policy creation to payout.
Wazo.io - The UCaaS Platform Built for MSPs
Ameyo - Ameyo is a powerful and highly flexible IP-based contact center software that lets you have a personalized interaction with every customer across multiple channels, thereby driving customer engagement to a level par excellence.
FreeSWITCH - FreeSWITCH is an open-source media application designed to support popular protools such as SIP and WebRTC and provides a platform to develop voice and video applications.
Aircall - Aircall is a call center software of a new generation designed for fast growing companies. Setup instantly and integrates to your CRMs