name: OMR
full_form: Optimal Media Routing
context: Figure 5.2.2.1.19.1.1 shows the session establishment with SDP offer/answer exchange from Originating side towards a Destination side, traversing an IMS Network Node including IMS-ALG function supporting OMR, and OMR results in IMS-ALG bypasses its local GW. Figure 5.2.2.1.19.1.-1: Message sequence chart for session establishment with IMS-ALG supporting OMR and IMS-ALG bypasses its local GW due to OMR process. 1. IMS-ALG receives an SIP INVITE with SDP offer-inc (call-ID#-inc) from Originating side, containing the transport address allocated in realm R1 by the Originating side for the media on incoming leg, and potential OMR information from prior user plane segments. 2. IMS-ALG determines the outgoing IP realm (R2) is different from the incoming IP realm (R1) and interacts with a GW in order to allocate a local transport address for the media on outgoing leg, in realm R2. 3. IMS-ALG generates SIP INVITE towards Destination side (call-ID#-out), with a new SDP offer-out including such
description: Optimal Media Routing (OMR) is a procedure in the IMS network that enables efficient routing of media streams between different IP realms. It involves the IMS-ALG function interacting with a gateway to allocate local transport addresses for media on outgoing legs, allowing for optimized media routing and bypassing local gateways when possible.
explanation: The context describes OMR as a process involving specific steps (e.g., receiving SIP INVITE, determining IP realms, allocating transport addresses) that enable efficient media routing in the IMS network. This matches the definition of a Procedure, which involves sequences of network operations.
section_title: 5.2.2.1.19.1IMS-ALG related procedures for OMR â Session establishment and IMS-ALG bypasses its local GW
biotag_Context: O,O,O,O,O,O,O,B-Protocol,O,O,O,O,O,O,O,O,O,O,O,B-Network,B-Network,O,O,B-Network Function,O,O,O,O,B-Procedure,O,O,B-Network Function,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,B-Procedure,O,B-Network Function,O,O,O,B-Network Function,O,O,B-Procedure,O,O,B-Network Function,O,O,B-Protocol,O,O,B-Protocol,O,O,O,O,O,O,O,O,O,O,O,O,B-Specification,O,O,O,O,O,O,O,O,O,O,O,O,B-Procedure,O,O,O,O,O,O,O,B-Network Function,O,O,O,B-Protocol,O,O,O,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,O,O,O,O,O,O,O,B-Network Function,O,B-Protocol,O,O,O,O,O,O,O,O,B-Protocol,O,O,O
biotag_Description: B-Procedure,I-Procedure,I-Procedure,O,O,O,O,O,O,B-Network,O,O,O,O,O,O,O,O,O,O,B-Protocol,O,O,O,O,B-Network Function,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O