User`s guide

ESI Communications Servers Administrator’s Manual Administrator progrmming: An introduction
A.6
Three-digit numbering plan selections (all ESI Communications Servers)
Selection 100 (default) Selection 200 Selection 300
From To Used for From To Used for From To Used for
100 267 Extensions 200 367 Extensions 300 467 Extensions
280 299 Departments 380 399 Departments 470 489 Departments
300 489 Guest/info mboxes 100 199 Guest/info mboxes 100 289 Guest/info mboxes
400 489 Guest/info mboxes
Common to all three-digit numbering plan selections (all models)
From To Used for From To Used for
0 — Operator 700 709 Esi-Link
1
locations
490 499 Q & A mailboxes 770 799 Esi-Link locations
500 — Broadcast mailbox 71 76 Esi-Link/CO line grps.
501 532 Group mboxes 8 — CO line grp.
533 542 Cascade notif. mboxes 9 — CO line grp./ARS
600 699 System speed-dial

— Call pickup
# — Paging
Four-digit numbering plan selections (ESI-600, ESI-200, ESI-100, and ESI-50)
Note: The “From” number is the same on all systems. The “To” number is dependent on the system type
because of the specific capacities of each system. See “System capacities” (page B.1).
Selection 1000 Selection 2000 Selection 3000
From To Used for From To Used for From To Used for
1000 1407 Extensions 2000 2407 Extensions 3000 3407 Extensions
1408 1471 Departments 2408 2471 Departments 3408 3471 Departments
3000 3999 Guest/info mboxes 3000 3999 Guest/info mboxes 2000 2999 Guest/info mboxes
4000 — Broadcast mailbox 4000 — Broadcast mailbox 4000 — Broadcast mailbox
4001 4032 Group mboxes 4001 4032 Group mboxes 4001 4032 Group mboxes
4040 4059 Q & A mboxes 4040 4059 Q & A mboxes 4040 4059 Q & A mboxes
4060 4079 Cascade notif. mboxes 4060 4079 Cascade notif. mboxes 4060 4079 Cascade notif. mboxes
6000 6999 System speed-dial 6000 6999 System speed-dial 6000 6999 System speed-dial
Selection 4000 Selection 5000 Selection 6000
From To Used for From To Used for From To Used for
4000 4407 Extensions 5000 5407 Extensions 6000 6407 Extensions
4408 4471 Departments 5408 5471 Departments 6408 6471 Departments
3000 3999 Guest/info mboxes 3000 3999 Guest/info mboxes 3000 3999 Guest/info mboxes
2000 — Broadcast mailbox 4000 — Broadcast mailbox 4000 — Broadcast mailbox
2001 2032 Group mboxes 4001 4032 Group mboxes 4001 4032 Group mboxes
2040 2059 Q & A mboxes 4040 4059 Q & A mboxes 4040 4059 Q & A mboxes
2060 2079 Cascade notif. mboxes 4060 4079 Cascade notif. mboxes 4060 4079 Cascade notif. mboxes
6000 6999 System speed-dial 6000 6999 System speed-dial 2000 2999 System speed-dial
Common to all four-digit numbering plan selections for these models
From To Used for From To Used for
0 — Operator 8 — CO line grp.
71 76 CO line grps. or
Esi-Link loc. prefixes
9 — CO line grp./ARS
700 709 Esi-Link locations

— Call pickup
770 799 Esi-Link locations # — Paging
1
For more information, see www.esi-estech.com/Esi-Link.