To have an overview of configuration you should first look at the Quick Start Guide.

• From the home screen, click on the Options item() then Identity () and configure the screen as shown below:

Of course you should replace '2233392625' with your own user name and don't forget to enter your password.

• From the home screen, click on the Options item() then Network () and configure the screen as shown below:

You should check "Enable 3G/2.5" if you are using 3G (e.g. UMTS) or 2.5 (e.g. EDGE) networks.
Both IMSDroid and sip2sip.info server support DNS NAPTR+SRV discovery.

• Returns to the home screen and click on the "Sign In" item () to register.