FaceTime is Apple’s video and audio platform that enables iPhone users to communicate with one another. Before you can make or receive FaceTime calls or phone calls on your Mac, you will need to sign in to FaceTime using your Apple ID and ensure FaceTime is turned on. You can turn off FaceTime or sign out of FaceTime on each Apple device. In this section, I will be describing ways to disable or enable FaceTime on Mac. Kindly refer to these related blog posts: How to change the default screen capture format in macOS, how to change the name of your macOS user account and home folder, how to enable or disable automatic Live Caption on macOS through Chrome, and how to locate and edit the host file on macOS.
There are actually a couple of ways to turn off FaceTime on your Mac. Kindly follow through this guide on how to achieve this.Why would you disable FaceTime on Mac?
Every time my iPhone rings with an incoming call, the rest of my Apple devices ring simultaneously. and this can be very annoying. To even make matter worse, the Mac device will often continue ringing for a few seconds even after taking the call on an iPhone. With this scenario I have just described, you will agree with me that, when we do not use FaceTime on Mac, it can be disabled. Should in case you do not want to disable FaceTime, you can use the following steps described in this guide to unlink FaceTime from Mac.
Disable FaceTime by unchecking the “Enable this account”
If you want to stay signed in to FaceTime but stop receiving calls, you can turn off FaceTime. If someone calls you, you won’t receive a notification for the call; to the caller, it looks like you’re not available. To to this, open the “FaceTime” application on the Mac as shown below.
From the top menu, select FaceTime and then Preferences.
In the Preferences window that opens, uncheck the “Enable This Account” button as shown below.
As you can see, FaceTime has been turned off. At this point, the FaceTime preferences will be grayed out!
To turn FaceTime back on again, launch Facetime, and click on the button Turn On.
Note: If you just recently turned FaceTime off, you may not be required to authenticate. 
As you can see below, I have entered my Password, and FaceTime is being activated for me.
Sign out of FaceTime
When you sign out of FaceTime, you can’t receive FaceTime calls or phone calls until you sign in again. To do this, please follow the steps below.
- In the FaceTime app on your Mac, choose FaceTime > Preferences, then click Settings.
- Click Sign Out.
Turn FaceTime on or off
If you want to stay signed in to FaceTime but stop receiving calls, you can turn off FaceTime. If someone calls you, you won’t receive a notification for the call; to the caller, it looks like you’re not available. To do this, launch FaceTime, and from the top menu, select FaceTime and then click on “Turn FaceTime On“.
Moreover, As you can see, FaceTime has been Turned off.
Instead of turning off FaceTime, you can turn on Do Not Disturb or another Focus in Control Center, which prevents notifications from disturbing you. However, To turn on FaceTime again, follow the steps below.
Turn on FaceTime: Choose FaceTime > Turn FaceTime On.Furthermore, I hope you found this blog post helpful. If you have any questions, please let me know in the comment session.