How to unlock SIP / Voip on your Nokia

1. Remove the old applications

   Settings / Application mgr. / Installed Apps
   Remove anything you may have installed.  In the app manger under installed apps look for 'InternetAdvSetting' or anything that begins with 'SipSettings*' etc.  Get rid of them both.  

2. Install 'InternetAdvSettings' by Nokia

   You can download the file here.
   This file has been extracted from the latest 'SIP_VoIP_3_x_Settings_v2_0_en.sis'.  This original file will not work as a standalone installer - but one of the parts within it solves the issues, we have supplied the extracted part for you.
   
   • Download the file above or click here
   • Extract 'sis' installer from the ZIP file
   • Install the SIS File on your Phone (it is SIGNED by NOKIA so it is SAFE)
   • When you get a message that says the App is incompatible with your phone - Hit Continue as this is not true, it works just fine.  You should however not see this error anymore.
   • You should now have a new ICON called 'Advanced VoIP' under Settings / Connectivity / Admin Settings / Net Settings
    

3. Create your SIP profile

   Settings / Connectivity / Admin Settings / Sip Settings / New Sip Profile
   Name your Profile something you like, such as 'VOIP' - this will be the name it shows up under contacts.  For example if you named it 'VOIP' when under a contact it will display as 'VOIP Call'.  For a typical install see the bottom of this page.  Set the Transport Type to UDP if calls are not working over 3G !
    

4. Create a VoIP Service

   Settings / Connectivity / Admin Settings / Net Settings / Advanced VoIP settings / Create new Serivce
   In order to actually use the SIP profile created in Step 3 you must Create a VoIP service.  To do this select 'Create new service' and then select the Profile you created in Step 2.  This will add a new item under 'Net settings' if you named your profile 'VoIP' it will show up as 'VoIP Sett'.
    

5. Adjust your Codecs

   Connectivity / Admin Settings / Net Settings / Advanced VoIP settings / Voip Servies / <your profile> / Codecs /
   If you know that your SIP provider supports G.729 then move that codec up to be #1 in the list - this should be self explanitory.  If you don't know what you are doing, skip this step!
    

6. Enable SIP over 3G

   Connectivity / Admin Settings / Net Settings / Advanced VoIP settings / Voip Services / <your profile> / Profile settings
   To enable SIP Calls over 3G set both 'AWCDMA' and 'UAWMAC' to ON.  Note that you will be charged for data when using 3G - and your phone should warn you when doing so.
    

7. Make SIP Calls look pretty in your Call Log

   Connectivity / Admin Settings / Net Settings / Advanced VoIP settings / Voip Services / <your profile> / Profile settings
   If you only want to see the callers number in your Call Log you can set a parameter that will strip the domain name out of the number calling you.  Say the number (555) 123-4545 calls you on your SIP line:
   
   Ignoring Domain Part: ON - the number will show as 5551234545
   Ignoring Domain Part: OFF - the number will show as 5551234545@sip.example.com
   
   The problem is if you have 'Ignoring Domain Part = Off' it is impossible to call back from say your mobile number or add the number to your address book.  For that reason it is best to set this to ON.
    

8. Prevent your SIP Client from TIMING OUT with the Server (STUN Server)

   If you notice that after a few minutes and you can no longer receive calls you likely have a timeout issue.  This can be fixed by using advanced settings and setting up a STUN server.
   Connectivity / Net Settings / Advanced VoIP settings / NAT Firewall Settings
   
   • Open Domain parameters, then select your SIP server domain, it should be there.
      
   • STUN Settings (for a list of public servers google 'public stun servers')
     STUN server: ex. stunserver.org
     Port: 3478 (or whatever your server uses)
     Username: (blank)
     Password: (blank)
     Shared Secret: Off
     Start Port: 49152
     End Port: 65535
      
   • TCP NAT bind refresh timer:1200
      
   • UDP NAT bind refresh timer:28
      
   • CRLF refresh: ON
     

9. How to Start and Stop VoIP Service

   Contacts / Globe Icon
   To start or stop the SIP service enter contacts then see the newly created Globe Icon - select your SIP user name, hit 'Options' and either log in or log out.  When the service is connected to the SIP Server you will see a phone sitting on top of a globe up on the status bar.

Setting up your SIP Profile

The following is how to set up your SIP profile.  If you have the service running, you must stop it in order to modify it this can be done following bullet #9 above.

Settings / Connectivity / Admin Settings / SIP Settings / Options / New SIP Profile 

Profile Name: VoIP (Or whatever you choose to call it)
Service profile: IETF
Default Destination: (Choose what ever is applicable to you such as 'Internet')
Public user name: sip:<your SIP number>@<your sip domain>
Use compression: No
Registration: When Needed (or whatever you like)
Use security: No

Proxy server (you might not need this - or you might.  Try without first)
Proxy server address: None
Realm: (IP Address to Server)
User name: (Your SIP number)
Password: (Your password)
Allow loose routing: Yes
Transport type: Auto (If SIP is not working over 3G try UDP )
Port: 5060

Registrar Server
Registrar server address: sip:<your SIP domain name> (ex. sip.example.com)
Realm: (IP Address to Server)
User name: (Your sip login or number)
Password: (Your password)
Transport type: Auto (If SIP is not working over 3G try UDP )
Port: 5060

Good Luck!