(Question) Does telephone module (TCU) is required to enable hands free protocol?

tedsalmon / BlueBus

A Bluetooth module for vehicles equipped with I-Bus

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(Question) Does telephone module (TCU) is required to enable hands free protocol? #61

Closed vgergiev closed 3 years ago

vgergiev commented 3 years ago

Would HFP working properly if I will connect an external microphone to the bluebus without connecting anything to the bluebus telephone connector? Working properly - sound goes via car stereo and voice captured by the external microphone

tedsalmon commented 3 years ago

Yes! You'll need to make these changes for a non-OE Microphone:

bt mpreamp on
bt mgain d2

-Ted