name: MGCF
full_form: Media Gateway Control Function
context: The Figure I.3 shows an example where the interception is done at the IBCF or MGCF in a non-roaming case. In the illustration, Party-B is the target with Non-Local ID and the nature of the interception to be performed is for outgoing calls. In the call, the Request URI and To headers point to Party-B. Figure I.3: IRI ICE at BCF - interception of a target with Non-Local ID for outgoing calls Figure I.3 shows the case where the Egress IBCF or MGCF is the IRI ICE for intercepting when the target is identified with a Non-Local ID. Accordingly, the IBCF or MGCF checks the Request URI and To headers of SIP message. Since MGCF is providing signalling conversion (e.g., SIP to ISUP and Vice-Versa), the MGCF checks the headers of the SIP message it receives. IBCF could check the headers from either of the SIP messages (they have to be the same anyway). Alternatively, the MGCF could also check the Called Party Information present in the IAM it sends out.
description: The Media Gateway Control Function (MGCF) is a network function responsible for controlling media gateways and providing signaling conversion between different protocols, such as SIP to ISUP and vice versa. It plays a crucial role in intercepting communications, especially when the target is identified with a Non-Local ID.
explanation: The context explicitly mentions MGCF as an entity that checks headers of SIP messages and performs signaling conversion, which justifies its classification as a Network Function.
section_title: I.2.3	Interception at the IBCF/MGCF
biotag_Context: O,O,O,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,B-Network Function,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,B-Message,B-Protocol,O,B-Network Function,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,B-Network Function,O,O,B-Message,B-Protocol,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,B-Network Function,O,O,O,B-Parameter,O,O,O,O,B-Protocol,O,O,B-Network Function,O,O,O,O,O,B-Protocol,O,O,O,O,O,B-Network Function,O,O,O,O,O,B-Protocol,O,O,O,B-Network Function,O,O,O,O,O,O,O,O,B-Protocol,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,O,O,O,O,O,O,O,O,O,O,O,O,O
biotag_Description: O,B-Network Function,I-Network Function,I-Network Function,I-Network Function,O,O,O,O,O,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,O,O,O,O,O,O,O,O,O,O,O,O