Re: HSP and HFP profiles for hands-free telephony

Georg Chini <georg@xxxxxxxx> · Fri, 22 Mar 2019 19:49:14 +0100



    On 22.03.19 10:59, Mohammed Sha wrote:

    
            Hi Georg,
            

            Thanks for the quick response.
            

            You should consider using ofono to connect your phone
              to the PC. It has all the

              telephony functions you need and it works well together
              with PA. See here

              for a short introduction:

              https://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/User/Bluetooth/
            

            I have tried using ofono for
              connection, but below error is coming continuously when
              call is initiated

            
             $ /ofono/test/enable-modem 

              
              Bluetooth:
                    hci0 SCO packet for unknown connection handle 0
            
            
    As already said, I cannot help you much with the bluetooth stack
      related problems.

    
            This looks like an error from the bluetooth stack,
              probably pulseaudio

              cannot correct it. I experienced problems with some
              Bluetooth dongles,

              have you tried another one?
            I havent tried with other
              module, The Module which i am using is QCA6174A, which
              will support HFP profile as per documents.  

            
            Do we need to route SCO audio
              as mentioned on section 5.0 in  https://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/User/Bluetooth
                ?

            
    Some adapters have issues and need firmware or the correct audio
      routing.

      If firmware is missing there should be something in dmesg.

      I think you have to experiment a bit and maybe buy another dongle.
    Regards

                   Georg

    
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