
Description: MicroSIP is an open source SIP softphone and instant messenger for making VoIP calls and sending IMs over the Internet. It supports standard SIP accounts from various providers and has features like audio/video calling, chat, presence, and more.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: We-Talk is a free, open source video conferencing software. It allows you to easily video chat with other users, share your screen, and collaborate on documents in real time. We-Talk is lightweight, customizable, and available for 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