autodetect command / audio RFCOMM channels

[khusmann]

Right now RFCOMM channels have to be manually specified when making RFCOMM connections; SDP service discovery is not supported.

Service discovery would be easy to implement using pybluez, but it is unfortunately no longer under active development.

In Linux we could simply call sdptool records --xml <UUID> and parse the result, but that still leaves Windows and OSX.

[Ylianst]

I have not started looking at voice at all in Windows, but in due time I am sure I will look into it.

[khusmann]

Awesome, much appreciated! It'll be easier for your application though because you can just call the windows API directly via C#.

But if you can turn whatever you end up with into a Powershell script I could call from Python via subprocess, that'd work pretty well, I think :)