P a g e | 271
UCM6510 IP PBX User Manual
Version 1.0.20.31
Black/White List.
If the user selects “Blacklist Enable” and adds extension in the list, the extensions in the list will not
be allowed to be reached via IVR.
If the user selects “Whitelist Enable” and adds extension in the list, only the extensions in the list
can be allowed to be reached via IVR.