Unable to make outgoing calls on 14ProMax

"Unable to make outgoing calls on 14ProMax: Since this last upgrade, I am unable to make phone calls o. My iPhone! I have a 14 Pro Max. Also some calls do not offer the phone feature to turn on phone speaker"

-------

Do you See: "SOS" or "No Service":

What may have Happened:

• Find Out here: If you See No Service, Searching, or SOS on your iPhone or iPad - Apple Support
• As it reads: "If you see SOS or 'SOS only' in the status bar, your device isn't connected to a network"
• Perform as Instructed from there

Report this to Apple:

Do your Part: Provide Apple with feedback on this, letting them know about this issue.  Apple may not get back to you directly, but the more feedback they receive on this, the more they will know what is occurring, and what bug fixes to include in updates to come. Apple will know nothing of this, if you don't report it to them.

1. Go Here: Feedback - iPhone - Apple
2. Select: "Bug Report" for the "Feedback Type"
3. Comment: that this all began after installing an update. Include the URL of this thread.
4. Proceed from there as necessary

Did you contact your carrier for help with this? See if this helps: If your call fails or you can’t receive calls on your iPhone - Apple Support