[Communication - Calling] Mute other participants does not work as expected in 1:1 call or 1:1 call converted to Group call

[lsbrettjewell]

• Package Name: @azure/communication-calling
• Package Version: 1.24.1
• Operating system: Windows
• browser
  • name/version: Chrome 124.0.6367.119

Describe the bug
In a 1:1 call that is converted to Group call, remote participants who are remotely muted do not immediately receive mutedByOthers event or isMutedChanged event, so their local microphone state cannot be managed accurately.

Setup:
Start 1:1 call, and then add another participant so the call is converted to a Group call.

Steps to reproduce the behavior:

1. Attempt to mute a specific participant, or mute all participants.

Expected behavior
Participant(s) is muted, and the muted participant(s) receives mutedByOthers event and isMutedChanged event.

Actual behavior
Participant(s) is muted, but the muted participant(s) do not receive any events.

Additional context

• This works as expected in a Group Call that did not start as a 1:1 call.
• This feature does not work at all in 1:1 calls, is this expected?

[github-actions]

Thanks for the feedback! We are routing this to the appropriate team for follow-up. cc @acsdevx-msft.