Restrict calls to DN

[PhoneFixer]

Is there a way to program a DN so that it can not be called? This a not a DID but an internal extension number to an analog phone set up with a hot dial to our Security Control Center. We do not want anyone to call this extension number.

 

[StoneColdphoneman]

That’ easy just put do not disturb on that ext

 

[coniglio]

If this phone goes off-hook and automatically dials out as a hotline to Security then there is no DN (ext. to call).