Panasonic DBS Series Overview page 17

Panasonic Digital Business System - Overview
April 1997 Issue 6
Call Charge Indication
The call charge is sent to the DBS at the end of an outgoing call. This data can be printed on
the call logger and/or optionally displayed on keysets with an LCD.
Calling Line Identity
The calling party's number or called party's number can be displayed on a keyset with an
LCD. The Incoming CLI from a caller is called Originating Line Identification (OLI) and the
number returned from the network from a called party is Terminating Line Identification (TLI).
DASS II Detailed Feature Descriptions
Where the DASS II features are different from the analogue equivalent the details are given
below.
Channel Seizure
The DASS channels are analogous to exchange lines and the terms channel and line can be
considered equivalent when discussing calls over ISDN. The method of selecting a DASS
line is the same as for Analogue lines. The two line types can be mixed in line groups, but
caution is required since the dialling method for each is slightly different. When a DASS line
is seized the B channel is set so that incoming calls on the selected channel are rejected.
Dummy Dial Tone
When a channel is selected the DBS will send a dummy dial tone to the internal user. The
tone stops when dialling starts. If no dialling is started during a specified time after seizure
the channel is released and busy tone sent to the user.
Dialling
Dialled digits are stored in the DBS and compiled into a dial message. this is sent to the
network when a send key (#) time-out expires. The send key can be assigned to an FF key.
If no digits are sent busy tone is heard by the user.
The timer restarts after each digit is entered. The time-out can be set by programming.
The # key is used as the send key. Analogue extensions using LD dialling will have to wait for
the time-out since they are unable to dial the send command. When dialling the first press of
# will send the digits entered so far to the line. A second press will act as a DTMF # or
account code terminator depending upon circumstances.
If digits are dialled after the send key is pressed they are stored by the DBS and sent as
DTMF after the called party answers. When using a DASS II channel the speech path is not
established until the called party answers.
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