To register your Bria app on your smart phone follow these steps.
Click on Preference
Turning on Mobile Data Network
Set Use When Available, Allow Voip Calls to ON and under General Set Run in Background to ON.
Create an account by pressing the plus icon
Choose “SIP” Voip (SIP)-Calling
Entering you account information.
Account Name: Is your extension number
Enable: To enable the account this setting must be turned on.
Display as: Your name.
Username: Is your extension number.
Password: Is your SIP password.
Domain: Is your PBX Domain
Registering
After the SIP credentials are entered above click on the register button. Bria will then try and authenticate the account and registered as an user agent.