I'm trying to change an ephone MAC on a CME router. I have both removed it from the gui and/or removed it via CLI but I get the same result trying to add the new MAC:
ephone slot is already registered with 2290.5bd7.0d01.
Cannot change MAC address.
If I do a "sh run", there is no entry for that ephone. If I do "sh telephony-service ephone" there is a section for that ephone but no MAC is associated with it. If I type "sh ephone" it shows up in the list as unregistered with the old MAC and shows it as type ATA. I'm trying to change it to a 7941.