I just updated to 10.13.2. After updating, I made a subsequent call on my iPhone (running iOS 11.2) and I noticed that my Mac is now listed as an audio device during the call in addition to the standard "iPhone" and "Speaker". I tapped on my Mac from the menu thinking that perhaps the audio would be routed to the bluetooth headphones that I'm currently using for audio input and output on my Mac, but I didn't hear anything through the headphones.
Anybody know why my Mac is suddenly showing up as an audio option during calls on my iPhone?

Anybody know why my Mac is suddenly showing up as an audio option during calls on my iPhone?

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