Same applies for Phiaton Chord MS 530. If I do not use A2DP, the mic
works. If I set it to A2DP, the mic dies. I had to use the Bluetooth
Manager (blueman) because the Bluetooth manager that comes with 16.04
could not handle the bluetooth set correctly.

So basically, up to 16.04, A2DP + Mic is yet not possible (Not sure if
it's Linux or the actual Bluetooth architecture).

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https://bugs.launchpad.net/bugs/508522

Title:
  Mic is not available with A2DP Bluetooth profile

Status in pulseaudio package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: pulseaudio

  I'm testing a Nokia BH-905i headset (see 
http://www.wissel.net/blog/d6plinks/SHWL-8AZGGF ) on Ubuntu 10.10. The 
Bluetooth module correctly identifies the headset and the both audio profiles 
"HSP/ HFP Telephony duplex" and "A2DP High Fidelity Playback". For music 
playback only A2DP is suitable (HSP/HFP sounds like listening to music played 
through an old telephone). A2DP does not have an INPUT mode, so use of the 
headset for VoiP isn't possible.
  What would be needed is a separate selection to allow to select A2DP for 
output and HSP/HFP for input. Smartphones (a lot of them *nix based) phones do 
that (or they switch on the fly?).

  Formal structure:
  1) Ubuntu 10.10
  2) Pulse-Audio 1:0.9.22~0.9.21+stable-queue-32-g8478-0ubuntu21.1
  consisting og pluseaudio, pulseaudio-esound-compat, 
pulseaudio-module-bluetooth, pulseaudio-module-gconf, pulseaudio-module-x11, 
pulseaudio-utils
  3) Select high quality audio output and still use the Bluetooth microphone
  4) Had to choose: either high quality audio or "telephone quality" with 
microphone

  I can change the profile without the Bluetooth connection dropping,
  but that's ridiculous. E.g. listening to music, a call comes in. Then
  I would need to switch the profile before answering. Please note that
  in Windows, Mac OS, iOS, Android, and Windows Mobile it's done
  automatically.

  Check out attached screencast.

  ProblemType: Bug
  AplayDevices:
   **** List of PLAYBACK Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  Architecture: i386
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
     Subdevices: 2/2
     Subdevice #0: subdevice #0
     Subdevice #1: subdevice #1
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  oivasyuv   2309 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xd8500000 irq 17'
     Mixer name : 'Analog Devices AD1984A'
     Components : 'HDA:11d4194a,103c30e8,00100400'
     Controls      : 22
     Simple ctrls  : 14
  Date: Sat Jan 16 22:31:41 2010
  DistroRelease: Ubuntu 9.10
  InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
  Package: pulseaudio 1:0.9.19-0ubuntu4
  ProcEnviron:
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 2.6.31-17.54-generic-pae
  SourcePackage: pulseaudio
  Uname: Linux 2.6.31-17-generic-pae i686

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