If the operating system for your Nokia mobile is S60 3rd Edition, Feature Pack 1, please follow these steps:
STEP 1: Download the suitable .SIS file and install it on your mobile. (Feature Pack 1)
STEP 2:Making the SIP Setting Configuration
Go to Menu / Tools / Settings / Connection / SIP settings, as shown in the following images:
1- Press Menu
2- Choose Tools
3- Choose Settings
4- Choose Connection
5- Choose SIP Settings
6- Press Options
7- Choose New SIP Profile
8- Choose Use Default Profile
9- After Profile Created
10- Put your GULFSIP number in the following form:
For example: 999????@sip.gulfsip.com
11- Go to Registration and make it: When Needed
12- Go to Registrar Server
13- Press Registrar Server Address
14- Put Registrar Server Address as : sip.gulfsip.com
15- Put it also in Realm
16- Put your GULFSIP number in User Name field
17- Put GULFSIP account Password
18- Press OK and check as follows
19- Go to Transport type and choose UDP
20- And Port 6321
STEP 3: Install SIP VOIP Settings
You need to transfer the file Nokia S60 3rd Edition, Feature Pack 1 to your Mobile through Cable or Bluetooth and install it
1- Go to Applications
2- Choose SIP VoIP Sett.
3- Choose VoIP Services
4- Press Options
5- Choose New
6- Choose: Use default profile
7- This will appears to you, press it.
8- Choose Profile settings
9- The following will appear
10- Go to: DTMF outband
11- Press DTMF outband
12- Press Back then choose Codecs it’ll change to off as follows
13- Go to G729
14- Press Options, then choose Move
15- Choose Number 1 then OK
16- The following will appear
STEP 4: Making calls
1- Go to Menu / Tools
2- Go to Connectivity
Note: in other mobiles you can find (internet tel.) under Menu / Communication
3- Choose Internet Tel.
4- Choose your Internet Access point
5- Choose Connect to service
6- Now it’s connecting to VOIP
7- You should see this symbol
8- Call any number using GULFSIP
9-Press Options then Call then Internet Call