Description: CSipSimple is an open source SIP client for Android that allows you to make VoIP calls over Wi-Fi or mobile data. It supports common SIP features like call transfer, call forwarding, call waiting, 3-way conferencing, etc.
Type: software
Pricing: Open Source
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: software