I’ve documented the configuration procedure, as a reference for anyone who might find it useful.

Prepare BlackBerry Pearl

To allow Mac OS X to find your device, ensure that Bluetooth is enabled on the BlackBerry Pearl and that it is set to be discoverable. These settings are available under Bluetooth in the Options screen.

Download Modem Scripts

Mac OS X 10.5 does not provide support for BlackBerry devices out-of-the-box. However, Grant Goodale has been kind enough to provide modem scripts that enable the missing functionality. I’ve mirrored his scripts here: BlackBerry.ccl.zip

Download BlackBerry.ccl.zip to your Downloads folder, and extract the archive. A new BlackBerry.ccl folder should appear.

Copy the BlackBerry.ccl folder to the Macintosh HD:Library:Modem Scripts folder.

Set Up BlackBerry Pearl on Mac OS X

Open System Preferences and go to the Bluetooth pane. Click “Set Up New Device…” which will bring up Bluetooth Setup Assistant.

Click “Continue” to move past the Introduction screen.

Select “Mobile phone” as the device type.

Mac OS X should find a BlackBerry 8100. Select it and continue. If your phone is not discovered, check that Bluetooth is enabled and the device is set to be discoverable. Once those settings are verified, go back and repeat this step.

In order to pair the computer and the phone, enter the given passkey on the phone.

With the devices paired, the BlackBerry Pearl can now be configured as a Bluetooth modem. Check the box next to “Access the Internet with your phone’s data connection” and continue.

Select Research in Motion and BlackBerry 8100 as the phone vendor and model, respectively. If wireless service is provided by AT&T (formerly Cingular), use the following settings.

Username: WAP@CINGULARGPRS.COM
Password: CINGULAR1
Phone Number: wap.cingular

If not using AT&T, contact your wireless provider for connection settings.

If Research in Motion does not appear in the Phone Vendor menu, the modem scripts were not properly installed. Repeat this procedure after fixing the installation.

Congratulations! The device has been configured.

Connect to the Internet

Open the Network pane in System Preferences. Select the Bluetooth service and click “Connect.”

If everything is correct, you should now be connected to the Internet using your BlackBerry Pearl!