Using Lcr With A Pbx System - Panasonic DBS-2.3-400 Programming Manual

Section 400-Programming
4. When a trunk is found, digits are added to or deleted from the phone

Using LCR With a PBX System

When the DBS is behind a PBX, two "9"s have to be dialed to access an
outside line -- once to access the PBX, and again to access a trunk line. In
these cases, LCR is often used to add the "9"s automatically (via the Add
Digits Table) so the user doesn't have to dial them each time.
In earlier CPC versions (CPC-A lower than 3.21; CPC-B lower than 2.11),
some office codes -- specifically, 941, 955, 991, and 980 -- should not be
routed through LCR in PBX systems. Because of the "9" dialing require-
ment, and because the DBS automatically drops out of LCR if 0, 411, 555,
911 or 800 is dialed, the DBS may interpret these special numbers as office
codes instead.
For example, if "9-911" is dialed to access a trunk and make an emergency
call, LCR may assume office code 991 was dialed instead. Therefore, do not
assign office codes 941, 955, 991 or 980 to Time Priority Route Tables if
you have an earlier CPC-A or CPC-B version.
DBS-2.3/9.2-400
when a trunk becomes available. When the DBS recalls, the user picks
up the handset and the DBS will automatically redial the number.
number, according to the Add or Delete digits assigned to the trunk group.
DBS Manual - Revised April 2000
Chapter 8. Least Cost Routing (FF8)
Page 8-5