Panasonic KX-TD500, System Reference Manual

Page: 229 / 1574

2.03 Direct Inward Dialing (DID)
Description
Incoming CO calls can be directly put through to
an extension, UCD group or attendant console in
accordance with the subscriber number which is
sent from the Central Office. This feature is
called Direct Inward Dialing (DID).
The KX-TD500 system provides 3 types of DID
features as follows.
• DID
• DID - Both way
• DID - with MFC-R2 Signal
a) DID
The DID line is usually provided as incoming
only.
When a call arrives through the DID line, the
Central Office sends the subscriber number. The
KX-TD500 system determines the destination
DN/FDN which is made by editing this number in
accordance with the DID modification table. The
DID modification table consists of 3 parameters.
# Receiving Digits Number:
The number of effective digits in a
subscriber number.
$ Deleting Digits Number:
The number of digits to be deleted from
the beginning of the dial which is
processed in step
# .
% Insert Dials:
The dials to be inserted at the beginning of
the dial which is processed in step
$ .
For example, the parameters of the DID
modification table are programmed as follows.
Receiving Digits Number : 4
Deleting Digits Number : 2
Insert Dials : 2
When the system receives a subscriber number
as “43112”, the destination is determined as
follows.
“43112”
Processed in step
#
“4311”
Processed in step $
“11”
Processed in step %
“211”
The destination DN/FDN
is “211”.
b) DID - Both way
Usually, the DID lines are used for incoming CO
calls only. When you use a DID-2W card
System Programming
Reference
VT Dumb
“Group-Trunk Group (1/3)”,
Type
“Group-Trunk Group (2/3)”,
DID Digit Modification
Table
“Trunk-CO Line”,
Trunk Group
DID Start Arrangement
“Special Attended-DID”,
Receive Digit
Delete Digit
Insert Dial No.
“Multi Frequency Code (MFC)”,
10-E-1.01
10-E-1.02
10-F-1.00
10-I-2.00
3-D-11
11-C-15.00
11-C-16.00
11-C-20.00
11-C-36.00
11-C-60.00
(KX-T96182D), you can make an outgoing CO
call through the DID trunks just as the LCOT and
GCOT cards.
The treatment of incoming CO calls from these
trunks are the same as a DID which is described
in “DID”.
c) DID - with MFC R2 Signal
Allows you to use the DID trunks which are
provided with the “MFC-R2” signal by the Central
Office. When you use these trunks, a DID MFC
card (KX-T96182CE) is required. The incoming
and outgoing features are the same as “DID-Both
way”.
The KX-TD500 system provides flexible
programming for the MFC-R2 signal interface.
You should program the parameters of the MFC-
R2 signal interface before using it. Refer to
Section 11-C-60.00 “Multi Frequency Code
(MFC)” and the manual which is packed with the
DID-MFC card for programming the MFC-R2
signal interface.
Programming
Conditions
• A reorder tone is sent to the DID caller if the
number of digits received is less than the
number which is programmed as the receive
digits of the “Special Attended-DID” screen.
• If the DN/FDN which is converted by the DID
modification table has no destinations, the call
is transferred to the destination of IRNA. If
there are no destinatinations of IRNA, the call
is transferred to Operator #1.
• If you make a call from a trunk which is a DID
(incoming only) trunk, a reorder tone is sent to
the caller.