Panasonic KX-TD500 System Reference Manual page 541

1.03 Paging External Pagers
Description
Allows extension users to perform paging through
the external pager belonging to the same tenant
by employing the DN button.
If two external pagers are available in the same
tenant, two methods are available: one is to page
by designating one external pager, and the other
is to page using two pagers simultaneously.
To execute this function, dial the feature number
for "External Pager" and to answer the paging,
dial the feature number for "External Paging
Answer".
Even if an external pager is connected to this
system, this function does not operate unless
"System-Operation", External Paging 1, 2 is
assigned to "Yes".
If Tenant Service is employed, assigning each
external pager to belong to a tenant is possible
by "Trunk-Pager & Music Source", External
Pager-Tenant.
Confirmation tone from external pagers is
selected by "Trunk-Pager & Music Source",
External Pager-Tone.
Programming
System Programming
"System-Operation (1/3)",
External Paging 1, 2
"System-Class of Service (3/3)",
External Paging
"System-Numbering Plan (3/11)",
External Paging
External Paging Answer
"Trunk-Pager & Music Source",
External Pager-Tenant
External Pager-Tone
Reference
VT Dumb
10-D-1.01 11-C-4.00
10-D-4.03 11-C-9.00
10-D-6.03 11-C-11.00
10-F-2.00
11-C-21.00
4-H-5
Conditions
If the designated pager is being used, busy tone
is returned to the paging performer.
If either or both of the pagers in a tenant are
being used, it is not possible to page using two
pagers. Busy tone is returned to the user.
If external pagers are not assigned in system
programming, reorder tone sounds.
The followings show the paging priorities:
(1) Paging External Pager from an Attendant
Console
(2) TAFAS (Trunk Answer From Any Station)
(Refer to Section 4-D-4.00 "Trunk Answer
From Any Station (TAFAS)-Day Service".)
(3) Paging External Pager from an extension
(this function)
(4) BGM through External Pager
If a lower priority page is active, and a higher
priority page is actuated, it overrides the lower
one: for instance, if Paging External Pager is
overridden by another higher priority, reorder
tone is returned to the performer of Paging
External Pager. If TAFAS signal or BGM is
overridden by another higher priority, it is
interrupted and starts again when the higher
priority is finished.