Underlying Bluetooth device of a modem

[Mikel Astiz <mikel.astiz@bmw-carit.de>]

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Hi all,

I am trying to set up a simple HFP demonstrator using 
BlueZ+oFono+PulseAudio, with a dbus client that coordinates the three of 
them. Being a simple prototype, the goal is to see how they behave and 
analyze how well it would all scale.

The first question that arises is quite simple. In a multi-phone 
scenario (all of them connected to our PC using Bluetooth HFP), oFono 
properly lists all the phones as available modems. I would like to know 
whether these modems can be associated to their underlying bluetooth 
device (mac address, bluez device dbus path, or whatever). I have been 
looking on the available modem properties but this seems not to be 
present. Could somebody confirm this or otherwise explain how it can be 
done?

The purpose of my interest is that, depending on the use-case, the final 
user would have to choose the modem (or device) manually.

Regards,
Mikel Astiz