BT audio playback is not getting paused during a AppRTC or Teams call

[Anilkumar]

Title:
Verify BT audio playback is paused during a AppRTC call and resumes after AppRTC call ended

Test Steps:
1. Boot to OS on SUT1 and SUT2
2. Connect SUT1 and SUT2 to Wi-Fi for internet connection
3. Verify Wifi connectivity on SUT1 and SUT2
4. Login Teams on both SUT1 and SUT2
5. Scan for BT devices and Do pair BT-headset supporting A2DP with SUT1 via Bluetooth
6. Play Audio from local audio file in SUT1 and check the audio quality
7. Do make Teams video call from SUT2 Config-user-name2 to SUT1 and Do receive video call from SUT2 Config-user-name2 to SUT1
8. Negative: Verify audio playback on BT_Headset during Teams call and the audio should get paused and switched back to teams call audio
9. Disconnect video call on SUT1 and Verify Audio Playback on BT_Headset
10. Once the video call is disconnected, the paused audio playback should resume on BT headset

Actual Behavior : During AppRTC call audio Playback is not getting paused
Expected Behavior : During AppRTC call audio playback should be paused and AppRTC audio should be routed to the headset

Tested Devices:
SUT1 and SUT2 are Ubuntu PC's
Wireless Bluetooth headsets : Apple, Oneplus, Moise, Sennheiser and BoAt

Note : This test is failed for all the 5 mentioned BT headsets