
Panasonic Digital Business System - Operating Instructions
March 1997 Issue 24
103
Confirming Call Charge Data
At the end of each outgoing call information about the cost of the call is sent to the DBS. This is output to a call
management system if installed. Additionally keysets with an LCD can call up the cost of the last call made on the
DASS II network. This is replaced each time a new call is made.
Operation:
1 Press On / Off
2 Press CONF
3 Dial #99
The charge for the last DASS II call is
displayed on the LCD.
The functionality of the DBS ISDN has been progressively increased with newer processors and software versions.
These updates are described in the following paragraphs. The new facilities are used automatically once set up by
the commissioning engineer and there are no new operation instructions required to be learned by the extension
user.
EURO ISDN And ISDN Feature Enhancements - CPC-EX v2.0
The CPC-EX v2 software provides the ability to connect to either DASSII or Q.931 ISDN protocols. In addition a
second digital trunk card may be fitted to double cabinet DBS systems to give a full 48 ( maximum allowed by
DBS ) channels split over two digital ‘pipes’. In this case both cards must be running the same ISDN protocol.
Systems using DASSII with more than 30 channels will require a new DASII card with an additional Sync Unit
connector in the master CCU. The second unit can be the existing DASSII card or a new card with the additional
connector. All Euro ISDN cards are equipped with the extra connection.
The Euro ISDN protocol supports Sub-addressing and 3.1Khz Audio calls in addition to the DDI and CLI facilities
available with DASSII. Sub-addressing is a DISA like function over the digital network. Digits are dialled after the
telephone number and these are passed to the receiving system and used to route the call internally. 3.1Khz Audio
is a setting which allows calls requiring limited bandwidth ( modem and fax calls ) to only take up the minimum
required bandwidth and not reserve system resources from calls which require the full channel bandwidth.
The DDI routing has been extended to include a follow on extension option for each DDI on the system with the
call reverting to the operator if both destinations are unanswered for any reason.
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