Cingular Treo 650

Bluetooth DUN on the Cingular Treo 650 works with both GPRS and EDGE. There are three logical components of setting it up:

Getting DUN (dial-up networking) set up on the Treo

Make sure Palm’s Cingular Treo 650 update 1.15 (or higher) has been installed.

Getting a computer paired with the Treo via Bluetooth

Before doing the pairing, you need to get a Modem Script. This will be needed in Step 3. But Mac OS X’s Bluetooth Setup Assistant goes straight from Step 2 to Step 3, so have the Modem Script ready.

Turn on Bluetooth on the computer and the Treo. On the phone, turn on “discoverable” and “dial-up networking”. Click Set Up Devices, then Trusted Devices, then Add Device.
1. On the computer, open Bluetooth System Preferences. Under settings, turn on “discoverable”. Click the Devices tab, then click Set Up New Device to open Bluetooth Setup Assistant. Choose Mobile Phone as the type of device to set up.
2. Use the Bluetooth set-up assistant on the Mac to do the pairing. At the end of a successful pairing, a screen should come up saying what services are available from the phone. Crucially, this screen should have an option that says something like “Access the Internet with your phone’s data connection.” Check this option. (For me, this option didn’t show up until restarting the computer twice, and soft resetting the Treo twice). 

Configuring network connection settings