[pcfixitman]

While I still believe the simplest way to engineer a solution to our problem is to use the SPP method I described earlier, I have found a new piece of information that may be helpful in finding an alternate solution.

It seems that the Sony Ericson branded devices supposedly use the Serial Port contained within the Hands Free Profile to send and receive AT commands directly thru the Audio Gateway on the phone. However, I have manually created a hands free profile for the watch using a similar technique, but have not had nearly as much success. This is primarily due to the fact that implemented a slightly different AT command set into their phones than that used by Windows Mobile 5.

While it may be possible to use the Hands Free profile, I still believe that we will need to use the Serial Port Profile because it allows us to simply query the audio gateway for information (caller ID, etc) and send custom tailored AT Commands to the watch via our own 3rd party application.

I only mention this because the Hands Free profile seems to contain the necessary ingredients for connecting to the watch. I think the problems I had using the HFP in the past were mostly to do with an improperly formatted "sdprecord" in the registry. Anyone attempting this method will need to research how an SDP Record for a device is created (since our watches do not respond to SDP requests) and custom tailor one to exactly match the services offered by the watch.

Anyway, I just thought I would mention it.