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IVX
S
N
YSTEM
UMBERING
P
LAN
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
560 to 589
Feature Codes
590 to 598
MOH Recordings
600 to 699
System Speed Dial
P
4.3
ROGRAMMING
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