
Description: Linphone is an open source voice over IP (VoIP) phone and instant messaging client for Linux, Windows, macOS, iOS and Android. It supports standard voice and video calls as well as instant messaging between Linphone clients.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: X-Lite is a free softphone application that enables VoIP audio and video calls over the internet. It supports common calling features like call waiting, call transfer, and conference calls. X-Lite is cross-platform and works on Windows, Mac, and Linux.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API