These instructions are taken from Ross Barkman's web-site
http://www.taniwha.org.uk/. Even though the example below is for the SonyEricsson M600i, Ross provides 3G modem scripts for most handset makes. I have successfully used Ross scripts to set up networking with my SonyEricsson M600i as well as with my Nokia N70 and N80. Ross' scripts are pintware so please send Ross a small donation such as $5 for his excellent work.
Ross also provides local operator settings which you need in order to configure Internet Connect. For example, in the case of the Swedish operator Telia you enter the following:
Telephone Number: online.telia.se
User: guest
Password: guest
For all other operators, please see:
http://www.taniwha.org.uk/gprs.html
Instructions
1. Download the Sony Ericsson Modem Scripts from Ross Barkmans web site:
http://www.taniwha.org.uk/files/SonyEricsson3G-2005-01.sit
Drop the modem scripts into Library/Modem Scripts
2. Set up PPP:
A. Open Network Preferences
B. Optional: Create a new location - call it "Mobile" or whatever (this is not absolutely necessary, since the modem config in the current location can have different settings to the existing Ethernet, etc. ports, but a separate location may be useful if you already have a mobile phone dial setting for the same IrDA/Bluetooth/USB port in your default location)
C. Select "Show: Bluetooth" (or a USB-serial or IrDA Modem port if you are using those)
D. Select the PPP tab and enter your network name in "Service Provider".
E. Enter in "Telephone Number" the APN for your network or NONE
F. Enter the Account name & Password (if required)
G. Press the "PPP Options..." button
H. Make sure that 'Send PPP echo packets' is not selected
3. Set up modem
A. Select the Bluetooth Modem (or the equivalent USB or IrDA name) tab in Network Preferences
B. Set 'Modem: "Sony Ericsson 3G <whichever script you're trying>"'
4. If using IrDA, turn on Sony Ericsson Infrared port:
A. <This procedure varies from phone to phone - see your users guide>
B. Line up phone's IR port facing IR port on PowerBook.
5. Connect:
A. Open Internet Connect
B. Select Bluetooth Modem Port (or the equivalent USB or IrDA port name)
C. Click "Connect"
D. No dial/modem sounds are heard during connection process
MacBook Pro 2GHz Mac OS X (10.4.5) Intel CPU, 1 GB RAM, 100 GB HDD