Asterisk - An open source telephony switching and private branch exchange service for Linux.
DelivApp - Software for managing online ordering, delivery and loyalty for multi-unit restaurants
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.
Shoedazzle - Shoedazzle is an American web-based fashion subscription service that debuts a select of shoes, handbags, jewelry, etc.
FusionPBX - FusionPBX is an open source FreeSWITCH GUI.
PackageX Receive - PackageX Receive digitizes package-receiving operations and delivers world-class package management solutions.