I was trying to do a swap of extensions - 2 users were changing their locations. Logged in as admin2, used the swap wizard and now 1 extension took the other's extension number. but the other phone / port doesn't work. Plug the phone in and it says initialize (so it's live / getting power) abd the LCD is blank. I tried other phones - the problem is with the port. if you call that extension, you get a busy signal.
any idea how to troubleshoot this?