Tethering Blackberries via Bluetooth: AT&T

I figured I should start writing down some of the more obscure information I come across every day. I'm an aggregation machine that just happens to lose data every so often, so this is my backup strategy.I have a couple co-workers with the new Blackberry Bold (9000). Yes it works well, it's light, thin, flashy, etc... but what really makes this killer is that it supports 3G data, and a concurrent voice call. Verizon and Sprint have Blackberries that support 3G data, but not at the same time as a voice call. T-Mobile should "eventually", but they're still developing their 3G network. (I stick with them for the excellent customer service)

All instructions here are listed for Windows XP, but if you're using Vista, they still work... the places you have to look are just slightly different.

There are quite a few forum posts on how to tether Blackberries via bluetooth but none that get it right, and for the ones that get it right, none that refer directly to the Blackberry bold. So, let me state a couple items:

When attempting to tether the Blackberry Bold via bluetooth, do not:

• Use the AT&T Communication Manager software
• Add the tethering plan to your AT&T account (yet)
• Expect to be able to sync your Blackberry to your laptop via Bluetooth reliably
  

Please do:

• Find and install the latest Blackberry Desktop Manager software (v4.7 as of this post).
• Pair your phone with your computer via bluetooth after installing the desktop manager software
• Expect to sync your Blackberry via USB (or use an enterprise server).

After all that (install Blackberry Desktop Manager, pair phone and laptop via bluetooth), here's what to do:

You should have a new modem in your modem list called "Standard Modem over Bluetooth" or "Standard Bluetooth Modem". You also may have one that just says "Standard Modem" but when your phone is paired it will list the com port your phone is on for the com port of the standard modem. Identify this device.

Go into the device properties of that modem (Phone and Modem Options / Modems Tab) and click on the "Advanced" tab. Under extra initialization commands, enter this:

AT+CGDCONT=1,"IP","wap.cingular"

Click OK a few times to save / close everything, then go to your Network Connections list and run the New Network Connection wizard.

Set it up as a dial-up connectoin, and when it asks for an ISP name tell it whatever you want, but when it asks for a phone number give it the following:

*99#

Save the new connection, create a shortcut on your desktop, and that's it, you should be able to dial-up!

Now if you want to do the "right thing" (tm), you'll call AT&T and have them add the tethering plan to your account. You can then use "isp.cingular" instead of "wap.cingular" which might be a little faster... or at least better if you ever need to call AT&T for help.

Otherwise that's it!