User guide

SYSTEM NUMBERING PLAN
The system’s fixed numbering plan is as shown:
1 to 16 CO Lines
100 Operator Extension (default)
100 to 131 User Extensions
191 to 192 Analog Extensions
200 to 209 Department Pilots
300 to 499 Guest / Info Mailboxes
500 Broadcast Mailbox
501 to 516 Group Mailboxes
520 to 529 Cascade Paging Mailboxes
530 to 550 Recordable System Prompts
590 to 598 MOH Recordings
600 to 699 System Speed Dial
IVX
ADMINISTRATOR PROGRAMMING 2.5