
Description: Zadarma is a cloud-based phone system and virtual PBX service that allows businesses to set up a professional phone system in the cloud. It provides VOIP calling, call routing, IVR menus, call recording, and other features without the need for on-premise hardware.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: CloudTalk.io is a real-time communication platform for business. It provides features like chat, voice/video calling, screen sharing, and task management to improve team collaboration and productivity.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API