Subcategory: VoIP Clients
Programing language: C
First release: April 27, 2009
Sipdroid – a free and open source SIP/VoIP client for Android devices, developed by the i-p-tel GmbH. The project started in March 12, 2009 by the project author Dr. Pascal Merle.
The app routes calls dialed from your phone’s built-in contacts app to VoIP. In settings you can choose when to use VoIP and when to make standard phone calls, based on being logged in to Wifi, and/or based on number prefixes.
– Two SIP accounts can be used simultaneously
– Supports STUN for users behind Network address translation (NAT)
– Video calls (limited support)