MyOperator - MyOperator is a cloud-based call management system for voice communication purposes.
Asterisk - An open source telephony switching and private branch exchange service for Linux.
Servetel.in - Servetel is an Indian cloud telephony service provider. We provide services such as Toll-Free Number, Virtual Number, IVR, Bulk SMS and Voice Broadcasting.
Wazo.io - The UCaaS Platform Built for MSPs
Vibtree - Communicate on Cloud
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.