Internet Essentials + Home Phone

I already have Cable with Xfinity
I just finished applying for Internet Essentials.

However, I also need Home Phone service. It's with my current ISP so I want to port that number over. I understand it's a separate service and different fees; that's fine.  The number we have is old and associated with many services over the years, and to be fair we probably don't remember them all. But one of them is Xfinity, for example!

I tried calling  the Internet Essentials phone numbers and a rep helped by leaving a note I do want Xfinity voice, but can't place this order without internet.  Main problem seems to be an entirely separate department handles the phone.  

Ideally I want to deal with this in one go with a technician visit so I can close my other ISP service after porting the number over, I cannot use Xfinity internet service until this is all done.  So I'm just leaving here as a heads up first.

Although the most important thing is just keeping the number. If Voice proves too costly, we may be open to mobile if it means keeping the number.