profile (add a new profile as below)
Profile name: powervoip (or whatever you want)
Service profile: IETF
Default access point: Your access point of internet
Public user name: username@sip.powervoip.com
use compression: No
Registration: Always on
Use security: No
proxy setting
Skip this
Registrar server
Registrar server address: sip.powervoip.com (lateron it will become sip:sip.powervoip.com)
Realm: sip.powervoip.com
Username:Username
Password: your password
Transport type: UDP
Port: 5060
Setting up the internet telephony
Tools / Settings / Connection / Internet Tel. Settings
Create a new profile for “VoIP Call (username)”, name it “VoIP Call” (or as you wish)
Choose “My VoIP Profile” as Preferred profile (the profile name you entered in step 1)
You should see successful registration, Now you should be able to make the call, try to call using the internet call facility, if it does not work reboot your phone.
Go to Tools / Settings / Call / Default call type
Select Cellular to make normal calls, Internet to use VoIP to call.
If you want to use fring with powervoip