This guide has been replaced with a newer one here:
https://www.telair.net/resources/knowledge-base/how-to-configure-your-mobile-devices/

Configuring SIP in Android is not a difficult task. It is a straightforward process that should not take more than a few minutes on any phone.

All you really require is Telair SIP credentials. If you do not have these, please contact support@telair.net

As long as you have all the details such as username, password and server/domain address, you can start making and receiving calls once you finish the Android SIP client configuration.

Step-By-Step Tutorial To Configure SIP Client On Android

1. Go to settings and choose call settings. (On newer android versions, call settings can be accesses from the main phone app then press settings from the top menu).
2. Click Calls.
3. Click Calling Accounts.
4. Click SIP accounts.
5. Press the + icon to add new account.
6. Enter your credentials and press save.

At this point you have additional options to configure how to make outbound calls from your mobile device.