I have successfully navigated the murky waters of AT&T to identify the process of getting the blackberry tethering to work with my Windows based PC and I wanted to provide a resource for others.
Setting up the Bluetooth Dial up Networking was the easy part, avoiding the PPP 734 Error was the pain. Hint, it had to do with this: AT+CGDCONT=1,”IP”,”wap.cingular”. I know, it looks Greek, but it is really Aramaic. No, seriously, it is an “Extra Initialization String” that is needed for the “Standard Modem over Bluetooth link” Advanced settings. (See Screen shot). I have the BES Unlimited plan, and these setting worked for me. Apparently if you run the BIS Plan, you must use AT+CGDCONT=1,”IP”,”isp.cingular” instead.
More to come.
Posted under Personal
This post was written by Brett W. Passmore on August 27, 2009






