Control Unit; Two-Digit Numbering Plan - AT&T MERLIN LEGEND Key System Planning

Control Unit

0
1
2
3
4
5
6
Main Pool
7
7 0
8
A
9
Figure 2-3 Two-Digit Numbering Plan
A = 800-Listed Directory Number
B = 889—Remote Access
See the CMS documentation for more
information on reassigning numbers for
CMS agent splits.
Operator Console (not flexible)
0
S t a t i o n s
1 0 — 1 9
S t a t i o n s
2 0 — 2 9
S t a t i o n s
3 0 —
S t a t i o n s
4 0 —
S t a t i o n s
5 0 —
Stations
60 — 67
MFMs & 7500Bs
710 — 767
L i n e s
8 0 1 — 8 8 0
ARS Access (Hybred/PBX Mode)/Idle Line Access
Each of the first 58 station jacks is assigned a 2-digit extension number
beginning with extension 10 and ending with extension number 67. The rest of
the stations (68–144) are assigned 4-digit extension numbers 6800–6885. Extra
adjuncts are assigned as extensions 6900–6985.
The extension numbers shown for MFMs/7500Bs (710–767) are resewed for a
station adjunct connected to an MLX telephone such as a data terminal
connected through an ISDN 7500B Data Module or an answering machine
connected using an MFM. The extension numbers are resewed whether or not
an adjunct is connected to the telephone.
For the first 58 digital station jacks, the actual extension number assigned to the
adjunct is the extension number assigned to the MIX telephone preceded by
a 7. For example, if the extension number assigned to an MIX telephone is 25,
the extension number assigned to the adjunct on that telephone is 725. In this
example, a call can be placed to the telephone by dialing extension 25 or to the
adjunct by dialing extension 725. If you reassign the extension number of the
telephone, the system does not automatically change the extension number of
the MFM or data module.
Note: If your system includes the CMS, it assigns extension numbers to agent
splits.
3 9
4 9
5 9
Extra Stations
6800 — 6885
Calling Group
770 — 791, 7920 — 7929
P a r k
881 — 888
9
Extra Adjunct
6900 — 6985
P a g e
793 — 799
P o o l s
B
890 — 899
2-19
System Numbering