Fresh install of Ubuntu 20.04 with a TT BH060 (TaoTronics):

Device E8:AB:FA:*:*:* (public)
        Name: TAOTRONICS SoundSurge 60
        Alias: TAOTRONICS SoundSurge 60
        Class: 0x00240418
        Icon: audio-card
        Paired: yes
        Trusted: yes
        Blocked: no
        Connected: yes
        LegacyPairing: no
        UUID: Headset                   (00001108-0000-1000-8000-00805f9b34fb)
        UUID: Audio Sink                (0000110b-0000-1000-8000-00805f9b34fb)
        UUID: A/V Remote Control Target (0000110c-0000-1000-8000-00805f9b34fb)
        UUID: Advanced Audio Distribu.. (0000110d-0000-1000-8000-00805f9b34fb)
        UUID: A/V Remote Control        (0000110e-0000-1000-8000-00805f9b34fb)
        UUID: Handsfree                 (0000111e-0000-1000-8000-00805f9b34fb)
        UUID: PnP Information           (00001200-0000-1000-8000-00805f9b34fb)
        Modalias: bluetooth:v000ApFFFFdFFFF

Also, kernel messages (hundreds):
[149342.549626] Bluetooth: hci0: SCO packet for unknown connection handle 0
[149342.549628] Bluetooth: hci0: SCO packet for unknown connection handle 12289

Switching to HSP/HFP just deactivates it completely. Only A2DP works as
expected.

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You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to pulseaudio in Ubuntu.
https://bugs.launchpad.net/bugs/1576559

Title:
  Refused to switch profile to headset_head_unit: Not connected

Status in PulseAudio:
  Unknown
Status in pulseaudio package in Ubuntu:
  Confirmed

Bug description:
  I'm trying to connect a bluetooth-speaker-with-microphone (Mi
  Bluetooth Speaker) to Ubuntu. It works well as an A2DP sync, but can't
  use it as a headset with microphone.

  The device doesn't list in the "Input Devices" by default, and using
  the sound settings to change the profile of the device to HSP/HFP
  results in this log message:

  W: [pulseaudio] module-bluez5-device.c: Refused to switch profile to
  headset_head_unit: Not connected

  
  I'm running Ubuntu 16.04 LTS. I did an upgrade from Ubuntu 15.10.

  pulseaudio:
    Installed: 1:8.0-0ubuntu3

  bluez:
    Installed: 5.37-0ubuntu5

To manage notifications about this bug go to:
https://bugs.launchpad.net/pulseaudio/+bug/1576559/+subscriptions

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