Tap Agree and Continue.
Fill in the two fields using:
Tap Create an account to continue.
The next page should have the field pre-populated with your domain. Tap Next to continue on.
The third page should have My provider/PBX requires an authentication username or outbound proxy checked and the remaining fields using:
Tap Next to continue.
Zoiper will then test the different methods to connect with the service. We recommend using TCP but UDP is also acceptable. Tap Finish.
Setup is done! You should now be able to make and receive calls using Zoiper.