For example, one
rate can be applied for uplink data, while a different rate plan is applied to downlink
data.
192 Chapter 7
Event This parameter holds the content of the EVENT header found in the
SUBSCRIBE and NOTIFY message received by the network entity. The data is removed
from the SIP message and provided in the DIAMETER message.
Event-type Found in the Accounting-event message, Event-type identifies the
type of service for which the request was generated. There are several parameters to
Event-type:
?– SIP-method
?– Event
?– Content-type
?– Content-length
?– Content-disposition
GGSN-address This parameter identifies the GGSN that generated the charging
ID located in another AVP in the same message. The GGSN-address is in the form of
the GGSN??™s IP address.
GPRS-charging-ID The GGSN provides a sequence number in this parameter at
the time the PDP context is created.
IMS-charging-identifier (ICID) This parameter identifies the IMS charging identifier
for a SIP session. It is generated by an IMS node and derived from SIP messaging.
The purpose of the ICID is to provide an identity that receiving nodes can use for correlation
of multiple associated charging messages.
Incoming-trunk-group-ID The incoming trunk identified in this parameter identifies
the trunk circuit from the PSTN portion of the associated call.
Inter-operator-identifier When a call is transported between two operators, interoperator
identification must be provided for proper inter-carrier billing.
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