During my recent trip to Rosarito, Mexico over New Years, I managed to lose my old Sony-Ericson T637. It just sorta jumped out of my hand in a nightclub and skittered across the dancefloor at whatever club we were at, never to be seen again.

I liked that phone pretty well - it worked great as a phone, but it had problems with my Motorola I’m-A-Prententious-Asshole Bluetooth Headset, and let’s face it, trying to browse the web using a multitap keypad is next to impossible. The interface was a bit clunky as well - something like 8 button presses to get out of the SMS screen so you could lock the phone and put it back in your pocket.

The loss of my T637 served as an excuse to blow my Christmas money on a Treo 650. While I’m not exactly an early adopter on these things, I’ve heard that most of the kinks have been worked out, and hey, Cingular even managed to stop being lame and now allow you to use Bluetooth Dial-Up-Networking, aka DUN.

I figured that since I have the $$$ Internet plan on this phone, I might as well use DUN with my Mac Powerbook G4 while I was getting my truck aligned. Note to self - don’t try using a feature for the first time while away from working Internet access.

Some fast and furious googling from the web browser on the Treo (which works quite well, I might add), showed that I wasn’t going to go anywhere without a special modem script installed on my laptop. Great, I’ll just downloa… fuck, no I won’t.

In any event, now that I’m back in the office, I was able to look up what needs to be done to get this Bluetooth DUN working between a Treo 650 and a Powerbook G4 with Cingular GPRS service.

1. Download a Modem Driver Script for Generic GPRS services.
2. Extract the Stuff-it archive, and copy the files “Generic 3G CID1″ and “Generic 3G CID2″ to /Library/Modem Scripts
3. Pair the Bluetooth Devices from the System Preferences App on the Mac
4. On the Treo, turn on “Dial-up Networking” in the Bluetooth application. You’ll get some adminishment that you can’t do Jack with your phone until you turn off Dial-up Networking.
5. On the Mac in the Bluetooth Preferences pane, select your Treo 650 from the list of paired devices, and click “Configure…”
6. The Bluetooh Setup Assistant comes up, prompts you for your password, and then gives you a screen that says “Select the services you want to use with your mobile phone:“. “Access the Internet with your phone’s data connection” should be checked, and you will want to select “Use a direct, higher speed connection to reach your Internet Service Provider (GPRS, 1xRTT).“
7. You then get prompted for the following (leave the checkboxes at the bottom at their defaults):
   

   Username:	WAP@CINGULARGPRS.COM
   Password:	CINGULAR1
   GPRS CID String:	WAP.CINGULAR
   Modem Script:	Generic 3G CID1

8. You can now test your connection by firing up the “Internet Connect” program from the Applications folder on your Mac. Click on Bluetooth at the top, then hit Connect. If all’s well, you should get connected and be able to surf the web and hack the planet from your toilet.