Bria Android Edition is a softphone for Android based smartphones. Bria can be obtained from the Bria official website.
Bria is supported on most handsets running a recent version of Android.
For information on other features, please consult the Bria Android Edition User Manual.
If you can not register, check over your username and password, and that the SIP settings have been entered correctly .
Ensure you have WiFi or 3G enabled (you will need to have a data plan with your provider).
Check you have STUN disabled.
Check the SIP Transport is set to UDP
If you are connecting to the Internet using WiFi then ensure SIP ALG has been disabled on your router. See this page for more information.