User`s guide

ESI Communications Servers Administrator’s Manual Administrator progrmming: An introduction
A.7
Four-digit numbering plan selections (ESI-1000 only)
Selection 1000 Selection 2000 Selection 3000
From To Used for From To Used for From To Used for
1000 1815 Extensions 2000 2815 Extensions 3000 3815 Extensions
1872 1999 Departments 2872 2999 Departments 3872 3999 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 4064 Group mboxes 4001 4064 Group mboxes 4001 4064 Group mboxes
4065 4084 Q & A mboxes 4065 4084 Q & A mboxes 4065 4084 Q & A mboxes
4085 4124 Cascade notif. mboxes 4085 4124 Cascade notif. mboxes 4085 4124 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 4815 Extensions 5000 5815 Extensions 6000 6815 Extensions
4872 4999 Departments 5872 5999 Departments 6872 6999 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 2064 Group mboxes 4001 4064 Group mboxes 4001 4064 Group mboxes
2065 2084 Q & A mboxes 4065 4084 Q & A mboxes 4065 4084 Q & A mboxes
2085 2124 Cascade notif. mboxes 4085 4124 Cascade notif. mboxes 4085 4124 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 the ESI-1000
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