name: ICID
full_form: IM CN subsystem Charging Identifier
context: provided by different network entities for the same call. The ICID could be useful in correlating SIP messages belonging to the same call, even if their SIP dialog identifiers are modified (e.g. by a B2BUA application server). It should be noted, however, that the use of the ICID is not necessary for the purpose of correlating SIP dialogs and the corresponding media streams. - P-Charging-Vector (GPRS Charging ID, GGSN address): GCIDs, along with the GGSN address, may be used as identifiers of the PDP contexts. These identifiers (one for each PDP context used by the SIP session) are made available to the P-CSCF and subsequently to the S-CSCF. They could be used to correlate SIP messages with the PDP context(s) used. For the purpose of correlating SIP dialogs with media streams, this type of correlation would be useful, although not essential. SDP Connection addresses and ports: The address and port information within the SDP of the SIP messages need to be matched with the addresses and
description: The ICID (IM CN subsystem Charging Identifier) is a parameter used for correlating SIP messages belonging to the same call, even if their SIP dialog identifiers are modified. It provides a way to identify and correlate different network entities' charging information for the same call.
explanation: ICID is classified as a Parameter because it serves as an identifier or attribute within the network, specifically used for correlating and managing charging information across different network entities and SIP messages.
section_title: Annex F (informative):
  Correlation indications of IMS IRI with GSN CC at the LEMF
biotag_Context: O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,B-Protocol,O,O,O,O,O,O,O,O,O,B-Protocol,O,O,O,O,O,O,O,B-Network Function,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,B-Protocol,O,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,O,O,O,O,B-Network Function,O,O,O,O,O,O,O,O,B-Protocol,O,O,O,O,O,O,B-Protocol,O,O,O,O,B-Protocol,O,O,O,O,O,O,B-Network Function,O,O,O,O,O,O,O,O,O,O,O,B-Protocol,O,O,O,B-Protocol,O,O,O,O,O,O,O,B-Protocol,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Protocol,O,O,O,O,O,O,O,O,O,O,O,B-Protocol,O,O,B-Protocol,O,O,O,O,O,O,O,O,O
biotag_Description: O,B-Parameter,O,B-Network,O,O,O,O,O,O,O,O,O,B-Protocol,O,O,O,O,O,O,O,O,O,B-Protocol,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O