Asterisk - An open source telephony switching and private branch exchange service for Linux.
LeadMaster - The LeadMaster LeadMasterCRM All-in-One solution includes: marketing automation, lead management, email marketing, website integration & much more.
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.
EVS7 Inside Sales software - EVS7 Inside Sales software is a platform that allows users to manage their team, power dial their prospects, and can track all of their results, The platform helps users to nurture their leads, accelerate their sales, and they can do all this from a…
freepbx - FreePBX is a web-based open source GUI that controls and manages Asterisk (PBX).
Outreach - Outreach Is Your Sales Communication Platform