[Webkit-unassigned] [Bug 255995] New: Incoming and outgoing audio do not recover for WebRTC call after PSTN call when User has an active PSTN call and only then User joins WebRTC call

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Wed Apr 26 10:39:09 PDT 2023


https://bugs.webkit.org/show_bug.cgi?id=255995

            Bug ID: 255995
           Summary: Incoming and outgoing audio do not recover for WebRTC
                    call after PSTN call when User has an active PSTN call
                    and only then User joins WebRTC call
           Product: WebKit
           Version: Safari 16
          Hardware: iPhone / iPad
                OS: iOS 16
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebRTC
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: madara.freimane at testdevlab.com
                CC: youennf at gmail.com

Summary:
Incoming and outgoing audio do not recover for WebRTC call after PSTN call when User has an active PSTN call and only then User joins WebRTC call

Tested devices:
Bug is reproducible on:
- iPhone 14 Pro (iOS 16.3.1) and Safari
- iPhone 13 (iOS 16.4.1) and Safari
- iPhone 11 Pro Max (iOS 16.5 Beta) and Safari

Scenario:
Precondition:
Safari browser is killed
User has an active PSTN call

Steps:
1. User launches Safari browser and joins WebRTC call
2. User ends PSTN call and returns to WebRTC call
3. User tries to communicate with other Users using WebRTC call

Actual result:
No incoming and outgoing audio for iOS User in WebRTC call and it is not possible to get it back, incoming and outgoing video works as expected.

Expected result:
Audio recovers for WebRTC call after the PSTN call, if the first call is a PSTN call and only then User joins a WebRTC call.

Reproducibility:
100%

Sysdiagnostics file added (recorded on iOS 16.5 Beta at 17:03 EET, 19.04.23.):
https://drive.google.com/file/d/1C8wPkv_2nhY1vRGyw5HbFfgDeY4pLiRl/view?usp=share_link

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