First the scenario: we are using conference phone calls during government public meetings for people who are phoning in to participate in the meeting. There could be multiple callers, which is why we are using a conference call.
We want to play the audio from the conference call on the overhead speakers in the Council Chambers, so that people in-person can hear the people on the phone.
Our problem: When we have no one on the conference call (e.g. at the start of the meeting), the conference call plays repetitive music. We can turn down the volume, but then we don't know when people have joined the conference call.
The solution we need: We need an option for the user or meeting to turn off the music on the conference call so that it's silent when the host is the only caller on the conference call.