Question: IMSI attach refers to the procedure used when a mobile station (MS) joins a GSM network. Suppose that the MS has changed its location while

IMSI attach refers to the procedure used when a mobile station (MS) joins a GSM network. Suppose that the MS has changed its location while it was powered off. The MSC and VLC needs to register the MS in the network and the location must be updated. Using message flow diagram only, show how message flow during the IMSI attach and the location update procedures? Ignore the authentication and the data encryption steps.

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