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GSM, ISUP and V5.2 Call Flows

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  • #42149

    The following link contains detailed call flow diagrams describing call setup in GSM, ISUP and V5.2:

    EventStudio 2.5 –
    Model in Plain Text; Generate Call Flow Diagrams in PDF/Word


    I looked at the MOCS flowchart and there is an error!
    The Immediate Assignment procedure is related to signaling channel assignment, not TCH. And all signaling between MS and MSC is flowing through SDCCH, not the TCH. The TCH is allocated in the Assignment command just before Setup command.

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