So when I get a call and my iPhone is off, my Apple Watch with LTE gets the call.

What if I had the Apple Watch cell service still, but switched the sim to some other phone?

Would it work the same way, where the phone gets the call when it’s on and the watch gets the call as well? Would the watch not get the call unless the phone is off? How would that work?

(I have AT&T if that matters)

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