iPhone  Installation Guide


1. install Zoiper IAX SIP Voip Phone from app-store and launch it

2. Click on Settings then Accounts

Now click + button to add a new account and press yes

3. tap on Select Provider

4. Select UltraTone

5. Account Name: UltraTone

Domain: voip.gpnsystem.com:55061

Username: Your GPN 6 digit number

Password: your  password

Caller ID: your GPN/Username

Auth Username: your GPN/Username

and then press Register

6. if you see the tick button it is connected and ready to make call.