Since 16.1 IOS update on iPhone 13 can’t connect to Verizon to make and receive calls

(1) Try and Force Restart your iPhone EXACTLY as shown below and see whether that resolves the issue:

• Press and quickly release Volume UP button
• Press and quickly release Volume DOWN button
• Press and Hold the SIDE button until an Apple logo appears and then release the Side button (Can take up to 20 seconds. (DO NOT release Side Button when invited to Slide Power OFF).

(2)  If the above does not work then - Have you contacted your carrier?

Axel F.

Have you contacted Verizon yet to verify that it is may be related to your phone service?

Ref: If you can't make or receive calls on your iPhone - Apple Support