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HELP : SCCP Routing Fundamentals !!!

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  • #59509 Reply
    Charu Kapoor
    Guest

    Hi All,

    I am working with an operator & till now was dealing with POIs so ISUP only was OK. But now I have to look after GT definitions . For this I need to know SCCP Routing – how to use GT , what definitons needed etc . Can somebody share some practical document about the SCCP Routing – like which GT defined for SMSC , which GT for LU, which GT for MT Call etc. I am very very confused
    I can’t read the ITU-T type docs. Pls send me a doc with lot of examples please
    Pls do send that at charu0211@gmail.com

    #59510 Reply
    C300G
    Guest

    Unfortunately I think there’s no such docs.
    Ask a questions. We’ll try to answer.

    >like which GT defined for SMSC
    someone unassigned E.164 from operator numbering. Preferable old numbering.

    >which GT for LU
    Auth triplets request to HLR – by E.214 of subscriber.
    Auth responce – by E.164 of serving node.

    >which GT for MT Call
    for what?

    #59511 Reply
    Wallis Dudhnath
    Guest

    As highlighted please send your questions and we will help.

    ISUP is used for Connection Orientated signalling, i.e. signalling is performed so that a CIC can be secured. SCCP – Signalling Control Connection Part – provides extra information and helps to obtain extra addressing information for Rout(e)ing. Good example is to use SCCP to obtain information from Databases (HLR/HSS/UDC, MNP, SDF (Intelligent Network, etc..) so that Rout(e)ing can be performed.

    For SCCP you will need to understand:-

    Global Title – GT (like an IP address)
    Sub System Number – SSN (access applications in a SS7 environment)
    Originating / Destination Point Codes – OPC/DPC (MTP Layer)
    Global Title Rout(e)ing Cases – GTRC –
    (Translation of information)

    VBR/ Wallis Dudhnath

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