5 audio profiles, hands free operation GR64


Hi I am attempting to use a GR64 in hands free. I have an audio amplifier on the AUX out, and an electret microphone on the MIC pins.

I am using the AT commands to switch between and modify profiles. So far the ONLY profile I can get to work at all is profile 0.

I am assuming that one of the other 4 profiles is intended for hands free, and there is an option somewhere which is preventing it from working.

It is documented that there are 5 audio profiles for different purposes, yet it is not documented as to what those 5 purposes are, or which profile is for each.

Has anyone had any luck getting the GR64 to operate hands free?
If so, a little help please?

Regards, Michael.