
DialogTech
CallRail
CallTrackingMetrics
Invoca
Marchex
Revenue.io
Gong.io
Callbox
Elastix
freepbx
FreeSWITCH
Wazo
Asterisk
3CX
FusionPBX
Kamailio
DialogTech
ElastixCallRail - A-la-carte call tracking software for small business
freepbx - FreePBX is a web-based open source GUI that controls and manages Asterisk (PBX).
CallTrackingMetrics - Know who is calling and how they found you. Maximize the return on your advertising.
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.
Invoca - Call tracking & analytics software
Wazo - Wazo is a unified communications platform based on Asterisk and focused on extensibility.