Unable to make or receive calls on iPhone

It is incredibly unlikely that both of your phones would fail in exactly the same way at exactly the same time, especially when you didn't both install the same update at the same time.

Contact your cellular carrier again.

"Unable to make or receive calls on iPhone: Husband and I both have iPhones and for the last couple of weeks, we have been unable to make a call out or take a call without the call either being dropped or the caller not being able to hear us. [...]I’ve contacted my cell company and we tried a lot of different things, including removing the SIM card and putting it back in. Again, HELP lol. Thanks so much!!"

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I. Troubleshooting Cellular Service:

A. "No Service":

Is "No Service" shown on the top-left corner of your screen? If so, go here to fix that: If you See No Service or Searching on your iPhone or iPad - Apple Support

B. No SIM":

Is "No SIM" shown on the top-left corner of your screen? If so, go here to fix that: If you See 'invalid SIM' or 'no SIM' on your iPhone or iPad - Apple Support

II. Troubleshooting a Muted iPhone:

A. Unmute the Apps: Adjust the volume bar on the apps themselves.

B. A Few Links that May Help:

• Volume Output: If you Can't Hear a Person on a Call or Voicemail or if the Sound isn't Clear on your iPhone - Apple Support

• Volume Input: if your Microphone isn’t Working or People Can’t Hear you While you’re on a Call -Apple Support

• If you Hear No Sound or Distorted Sound from your iPhone, iPad, or iPod touch Speaker - Apple Support

• If the Microphones on your iPhone aren't Working - Apple Support

• Control Audio Playback on AirPods with iPhone - Apple Support

• Adjust Audio and Visual Settings on iPhone - Apple Support

• Adjust the Volume on iPhone - Apple Support

For all issues with calling, contact your carrier.

Denise ~ Your post's tagline indicates iPhone 13 Pro. Does your husband have a different model?...

Settings > General > About > Model Name

Your iPhone 13 Pro could be 3½ years old — which is when a battery can become weak due to age and recharging cycles. The aging battery may then be too weak to supply sufficient power to the iPhone's antenna to maintain the connection with cell tower signals. So...

Does your iPhone 13 Pro still have its original battery?

And what's the Maximum Capacity % here?...

Settings > Battery > Battery Health & Charging

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