I'm working on a device that has to connect over serial BT to a phone to control it. It works quite ok allready but i'm facing a bit of a problem with the return codes that i'm expecting to get when a call is finished. I'm expecting to get something like "No Carrier" or similar, but nothing comes thru. Serial connection is ok, as i'm able to fetch/send sms messages over it, and the "RING" and "CLIP" status comes in ok.

Can anyone give me some help on how to get the phone to give me the connect, no carrier, etc statusses?

Current phone is model 6085, but i have a few newer ones lying around, like 6100 (i think), which give the same result.