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ss7 signalling

Viewing 6 posts - 1 through 6 (of 6 total)
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  • #57459 Reply

    dear all

    i want to know how can i reject all the signalling from other switches want to use our switch as stp except who has a permission!!


    #57460 Reply
    Jerome Ng

    You need to configure Policing, which can be done on MTP (ie OPC, DPC) or SCCP level (CgPA, CdPA, SSN, etc).

    This may be an optional feature that you need to purchase from the switch supplier.

    #57461 Reply


    thank you MR Jerome for your help…but i forgot tp mention that i was talk about the PSTN switch i think we cannot use SCCP!!
    and how in general the configuration will be done on MTP (i don’t mean the commands)!!

    #57462 Reply
    Jerome Ng

    hi Benha,

    To prevent unauthorised usage of the switch/STP, you can configure either an “Allow” list or a “Disallow” list, with the OPC as the criteria. In the “Allow” list, you need to include Point Codes of ALL nodes that are to use the STP. You need to be very careful with this. Missing out on any point codes will result in service outage. You use a “Disallow” or “Block” list when you want to prevent usage by specific signaling points.
    In addition, you can create a chain of criteria, eg “Allow” this OPC, but “Allow” only this list of DPCs for this OPC. The switch supplier should be able to furnish you with more details.

    #57463 Reply

    thank you Jerome

    these informations very helpful for me ..but i want to know is it possible to configured in siemens PSTN (ewsd or powernode )
    if one of the DPC in the ‘disallow’ list try to use our switch as STP what’s the situation in his side..he can know i put him in disallow list??
    and can i know this DPC trying to use our switch as STP
    thank you so much

    #57464 Reply
    Jerome Ng

    Hi Ben, you’re welcome.

    Unfortunately I’m not familiar with Siemens switches. I hope there is someone who will be able to help.

    Good luck!

Viewing 6 posts - 1 through 6 (of 6 total)
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