Bug 246331 – [iPhone 14] User cannot unmute WebRTC call and loses incoming and outgoing audio after receiving PSTN call and declining it

• Status: NEW
• Component: WebRTC

[Madara Freimane]

Summary:
[iPhone 14] User cannot unmute WebRTC call and loses incoming and outgoing audio after receiving PSTN call and declining it

Tested devices and browser:
Bug is reproducible on:
- iPhone 14 (16.02, build: 20A380) with Safari
iPhone 14 (16.0.3, build: 20A392) with Safari

Bug is not reprodudicible on:
- iPhone 11 (16.02, build: 20A380) with Safari
- iPhone 11 (16.03, build: 20A392) with Safari

Use case:
Preconditions:
Users (also iPhone 14 User) are in active audio/video WebRTC call 

Steps:
1. iPhone 14 User receives a PSTN call
2. iPhone 14 User declines the PSTN call
3. iPhone 14 User tries to unmute the WebRTC call

Actual result:
Incoming and outgoing audio disappears and iPhone 14 User cannot unmute WebRTC call (unmute button not responding)

Expected result:
WebRTC call goes to "unmuted" state automatically after the PSTN call. Remote participants in the WebRTC call can hear iPhone 14 User again.

Reproducibility:
100%

Additional information:
-Sysdiagnostics file added:
 https://drive.google.com/file/d/181R5Tou-8x4Qryb8tQW4l2-W-kniRrTW/view?usp=sharing

[Radar WebKit Bug Importer]

<rdar://problem/101285001>

[Madara Freimane]

Bug is still reproducible
Tested device:
iPhone 14 | iOS 16.1, build: 20B82

[Madara Freimane]

Bug is still reproducible on iPhone 14 (iOS 16.1.1,  build 20B101) with Safari

[Madara Freimane]

Hi, @Youenn!
 I am not able reproduce this bug anymore with iOS 16.2 Beta 2, build: 20C5043e, iPhone 14.

[Madara Freimane]

Fixed => Bug is not reproducible anymore.
Tested device:
- iPhone 14, iOS 16.2, build: 20C65

Thanks!

[Joyce Ma]

This issue is still reproducible after the second PSTN call rejection on 16.2.

However, it is fixed for the initial call.

Are there any updates for this bug?