Nimbuzz

Step : One
  To add Wiki service click on OPTIONS and then SETTINGS, navigate between the options using the up and down arrows on your handset and choose SIP from the list

 

Step : Two
  When the following screen appears navigate down and choose " SIP Other" from the list.

Step : Three
  The following screen appears;

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  Enter the following for SIP settings
Username: 5551231234@ 31.193.170.14  (Instead of 5551231234 account number example, use your wiki account Pin)
Password: Enter the same password used to login to your Wiki account 
(passwords are case sensitive)
Proxy Server:  31.193.170.14

Step : Four
 

Once Nimbuzz is registered you will see "SIP Other" option as "Connected" or "Active"

Nimbuzz other SIP configuration

Step : Five
Once Nimbuzz is registered to make a SIP call:
Nimbuzz other SIP configuration
 
1. Choose "Phone Book" and than "Call" in your address book and press Options using your left soft key.
2. From the Call submenu, choose "Internet Call". Your call is made using the account you have added.
Enjoy Cheap International Calls!
To dial any phone number you must dial:
Country Code + City Code + Phone number
For example if you want to call India (country code 91) phone number