Initial problem was that incoming calls were receiving a message "This number is currently not available, Switch 79-1." I was outside a surgery center waiting on a call saying my wife was ready to be picked. She had waited an hour until I thought that she should be ready and checked in at the front desk.
After getting home, I checked my Samsung S7 phone. Using my landline and my wife's cell, I received the message also. I googled the problem. Do not disturb was not engaged. I dialed *73 to remove call forwarding which should not have been on. After that test calls were directly sent to voicemail.
I need help to resolve issue.