Asterisk - An open source telephony switching and private branch exchange service for Linux.
LevelEleven - LevelEleven is a sales performance optimization platform.
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.
Spinify - Sales gamification to motivate, engage and celebrate your teams performance.
FusionPBX - FusionPBX is an open source FreeSWITCH GUI.
Outreach - Outreach Is Your Sales Communication Platform