User`s guide

23(59)
Datum/Date Rev
Dokumentnr/DocumentnrUppgjord/Prepared
Dokansv/Godkänd - Doc respons/Approved Kontr/Checked Tillhör/Referens-File/Reference
99-07-15 A
365/155 34-ASB 150 02 Uen
FACILITY DESCRIPTION
Faktaansvarig - Subject responsible
Supplementary service - Advice of charge
Definition
The QSIG-supplementary service Advice of Charge
(AOC) in ASB150 02 provides the user with charging
information, received from the public network, for calls
that leave the private ISDN and enter the public
network.
The charging information is transferred within a private
network (QSIG) as cost information by the public
gateway. This cost information includes also the
national dependent currency units.
For more information regarding AOC,
see ISDN facilities,
document 268/155 34-ASB 150 02 Uen.
Operation
ASB150 02 as public gateway PBX
Public network with ISDN signalling
AOC is either provided for all calls or requested from
the public network on a per call basis from the public-
gateway exchange (command 1914, T-interface). AOC
can be requested as AOC-D or AOC-E.
Public network with ‘non-ISDN’ signalling
Only if call metering is provided (command 1501: Yes)
on outgoing BTU_, the gateway PBX sends a positive
response to an AOC request (interim, final, no
preference) which is received from the private network.
The conversion from pulse to costs is always done in
the gateway PBX.
ASB150 02 as transit PBX
An AOC request received in a transit ASB150 02 is
transferred through transparently.
Actions at a terminating PBX
An AOC request, received in a terminating exchange
within the private network, is rejected with the value
‘Free of Charge’.
Interaction with other features
Transfer, call extending
If the transferred-to party resides outside ASB150 02
but within the private network, the transferred-to party
will not have the AOC feature active.
External call diversion
The cost of an externaly diverted private network call
is booked to the diverting extension in the public
gateway exchange and is sent to the call originator for
display purposes in the private network.
Limitation
S-terminals are not provided with the AOC information
from the private network.
The charging information received from public net, is
forwarded as cost (cost amount and currency) from the
public gateway ASB150 02 to the originating exchange
in the private network. Only interim charging should be
requested (programmed) in the originating exchange
because the received AOC-information from the
private network is only used for display purposes (the
extension’s display is updated only during call). The
received costs can not be read out by the CM function
and are not applicable in the CIL function.
The charging is only stated in the CIL record of the
gateway exchange