Hello
I have the dterm80 system. on 2 of the phones, the display shows "00 ND"

Now I cannot intercom to these phones, i get the busy tone. And maybe some other features are also disabled.
Any help is appreciated, thank you

ughh sorry

display shows 00:DND

Try pressing FEATURE 69 FEATURE.

Your phone probably got into this condition because someone pressed FEATURE 60 FEATURE.