AT&T landline port to Xfinity Voice incomplete – outgoing works, incoming does not

We are porting an existing AT&T landline number to Xfinity Voice.

Xfinity Voice has been activated and outgoing calls are working. Incoming calls, however, are not reaching the Xfinity line. The caller hears normal ringing, but the home phone does not ring. There is no caller ID, and picking up the phone while an incoming caller hears ringing still gives us a normal dial tone.

We have already completed troubleshooting and restarted the Gateway. I have spoken to several Xfinity representatives and received conflicting information about the status of the number port and the required AT&T porting PIN.

I was referred to the Xfinity Porting Department at 1-877-397-9734, but I have been unable to reach anyone there.

Could an Xfinity employee please check the status of the LNP/number-port request and assist me with this?