Web site:
Category: Network
Subcategory: VoIP Clients
Platform: Android
License: GPL
Interface: GUI
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)

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