Trunk group number. The trunk group number associated with the trunk where the attempt originated.
Mbr
Trunk group member. The trunk group member number associated with the trunk where the attempt originated.
Port/Ext
Port/extension. The port or extension associated with the station or attendant originating the call.
FAC
Feature Access Code. The feature access code dialed that required a station security code.
Dialed Digits
The digits the caller dialed when making this invalid attempt. With the dialed digits, you can judge whether the caller is actually trying to break into the system or the caller is a legitimate user making typographical mistakes.
