Phone call

I use my fingers

That made me LOL wish i could give it more than one upvote.

I use the Yonomi app to mute my sonos when a call comes in. Works great for me.

I use my fingers

Don't quit the day job

How would the phone decide which player to mute when a call comes in?

That's the point, it's not the phone deciding, it's the Sonos Controller app making all the decisions, and that app already has all the information. iOS has an API which allows the Sonos app to detect inbound and outbound calls... since that app *already* knows which players its controlling music for, it simply mutes them.

Again, it's not the phone making the decisions, it's the Sonos app responding to events happening on the phone.

Seems like the design might get a little complicated.

Not if it's limited (by necessity) to a very common usage scenario. People who want that feature would just have to ensure they were using their phone as the controller, which let's face it, they probably are anyway.

Still not following you. The Sonos app knows what zones are playing but it doesn't know which zone the phone is currently in so which one does it mute? If 4 people are playing different music in 4 different rooms some of them are going to be annoyed when your phone rings and their music stops. Likewise if you have the same music plying in 4 rooms that are grouped together there is no reason to mute the whole group, just the room that the phone is in. It is easy to do what you want with a land line phone system because the phone in a given room mutes the player in that room and I do that all the time. I just don't see how you match a mobile phone to a particular room so the music mutes in the right place.

Perhaps the solution is to make the app easier access when taking a call. My android S7 hss the app (widget?) In the notification area. i would be happy to simply pause the sound quickly before answering. Making options for a floating, accessible widget to use play, pause and volume would be fine.

Any possibility to have an optionnal switch to mute the Sonos music when the iphone rings and is answered.

The volume controls are not accessible when the iphone rings and I have to run ouside the house to answer the phone with a customer on the line...

Would it be possible to have a switch to auto mute the Sonos when I answer a phone call?

Download Macronos In google play store and in the settings there is an option to pause or turn down Sonos speakers while on phone.