""Wow, it's interesting they could not reproduce the problem and come up with a solution.""
Keep in mind, they had no problem reproducing the problem. It was the solution that was stumping them.
Verizon has already re hung a new copper drop for my house here in Eastchester New York and finally I am back to normal.
NO MORE ECHO. AND DIAL TONE STAYS ON
Computer is still being fed by FIOS. I really hope Verizon figures it all out with time. If it ever works correctly I would convert to just FIOS.