Some improvements have been made about that within the 13r2 and more in the 13r3. You need to select the "default" audio devices, depending of the environment, myApps will take the default offered audio device.

At leat I can tell you my experience about that : I use on a daily usage myApps Android and always forgot to turn on my headset, As soon my headset is connected to the smartphone via Bluetooth myApps switch to the Bluetooth headset if the audio setting of myApps is set to standard.

We invite you to give another try with the new 13r3 Softphone App