#1008 No outbound Bluetooth audio from Motorola Defy

[Anonymous]

Originally created by: paulblac...@gmail.com

What steps will reproduce the problem?
1. Establish a call.
2. Ensure that you are using bluetooth audio device.
3. Listen to the receiver of the phone that has been called (ie standard landline telephone)

What is the expected output? What do you see instead?

Expected output would be to hear a 'two way' conversation.
There is good audio heard on the inbound speech over bluetooth to the Moto Defy running csipsimple but there is no audio outbound.
(actually there is a very faint outbound audio but it is distorted and incomplete)

What version of the product are you using? On what operating system?

Stock Froyo 2.2.1 csipsimple 0.02-01 (from market)

Please provide any additional information below.

I am using 8k sampling and I have tried all combinations of microphone input and sip settings under the 'expert' settings.
Normal cellular calls work fine over bluetooth and csipsimple works wonderfully when not using bluetooth.

[Anonymous]

Originally posted by: r3gis...@gmail.com

Defy's BT support is already known as a problematic implementation.
Please track issue 51 (and add comments if necessary).

The fact that normal cellular calls works is not relevant cause the application that retain the BT SCO connection is actually the GSM app. So that's normal that it works with this one ;).

Usually when we get this kind of problem it's cause the manufacturer did crappy things on the ROM. For example directly plug routing at very low level between the GSM chipset and the BT micro input, without giving ways to apps to get the audio packets.
What would be much more interesting would be another app (third party) that have bluetooth working on your phone. It could give some clues about the workaround we should apply to get it working. Most of the times workarounds are either the micro source or the mode for sip calls -with use mode api disabled-, but it could also be something about the order of activation of mode, BT and so on .

Mergedinto: 51
Status: Duplicate