How do I prevent silenced spam calls from affecting music/podcast volumes on macOS and iOS?

As @KiltedTim points out, "toast notification" or "Toast UI" are not terms of art here in Apple-land.

Your iPhone is sending calls to your Mac, and you are seeing the Live Voicemail feature. You can either turn off iPhone calls going to your Mac, or turn off the Live Voicemail feature.

On the iPhone, go to Settings > Apps > Phone > Calls on Other Devices and toggle off the whole setting or just your Mac.

On your Mac, open the Phone app (in the Applications folder) then Phone menu > Settings > Calls tab, and uncheck the box for Live Voicemail.

More info from Apple: Phone App User Guide for Mac - Apple Support

Do forgive me for making a mistake while trying to help. Some days there just isn't enough coffee in the world.

Yes, I get a window on my Mac when a call comes in. I have mine set to Ask Reason for Calling so I see how they're responding. But it always goes away on its own. And, as I recall, they don't have any sound.

Do you want/need to see your calls on your Mac? If not, turn off that feature. Settings>Apps>Phone>Calls on Other Devices.

If you do want the calls, I'd still recommend going to Settings>Notifications on your Mac and seeing what making adjustments there might do. I'd pay particular attention to "Desktop"

Anonymous0101 wrote:

I get that you're trying to be solution oriented, but I think this is in the area of being a bug that should be fixed.

Then you should report it to Apple:

Product Feedback - Apple

The native iOS apps don't have "toast" notifications. They just aren't an iOS thing. I think you might mean a banner? Go to Settings>Notifications>Phone and uncheck "Banner" under Alerts. See if that helps.

Unfortunately that feature is useful for calls I care about. The problem is that it occurs for unknown silenced callers.

I get that you're trying to be solution oriented, but I think this is in the area of being a bug that should be fixed. If unknown callers are silenced, and the normal call notification doesn't go through, the live voicemail UI on MacOS shouldn't either, it also shouldn't spike the volume of my music at the same time. There's no way to disable that UI for unknown silenced callers in the settings so this requires developer intervention at least.

Anonymous0101 wrote:

Waiting.

Apple, as noted, doesn't respond to feedback. KiltedTim was suggesting that you contact Apple Support and discuss the matter with them directly.

KiltedTim wrote:

Sorry? What is a "toast" notification? This makes no sense in relation to calls...

Toast notifications are auto-dismissing status messages used to convey information without disrupting user workflows.

From Wikipedia: A pop-up notification (or toast, passive pop-up, snackbar, desktop notification, notification bubble, or simply notification) is a graphical control element that communicates certain events to the user without forcing them to react to this notification immediately, unlike conventional pop-up windows. 

Usually called 'temporary banners' in Apple parlance.

Maybe I've been living under a rock, but I have never heard them referred to as toast notifications, or snack bar notifications.

That said, I have never experienced the problem with volume the OP is referring to.

This is the MacOS section of community questions. The issue I am talking about pertains to MacOS, not iOS. I am not talking about Banners. I am talking about a Toast UI. I included iOS in the title so it's known the phone calls are routed from my iPhone next to me while using the Mac.

When you receive a spam call on MacOS even when it's "silenced" unknown caller, it creates a giant annoying toast notification in the top right of the screen.

I think it might have something to do with when the spammer leaves a voicemail?

This giant, intrusive, extremely annoying UI gets through on my screen many times a day for silenced unknown callers. And while it occurs, my music/podcast shoots to 100 volume during it.

Sorry? What is a "toast" notification? This makes no sense in relation to calls...

I've clarified and posted an image below.

What did Apple support say when you reported the problem to them?

I've send bug report feedback about the volume and showing for silenced unknown callers.

Waiting.