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KPI Help reqd

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    Pix
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    You cannot detect silence directly, but you can detect short call duration, while amount of call drops and amount of outgoing HO are small.

    In other words : calls are released shortly after they are established.
    1/ Check average TCH duration in the cell (or per TRX)
    2/ Check average A-interface timeslot usage.

    The 1st method works if the problem lies in the cell or in the BSC
    The 2nd method works if the problem of silence comes from a problem of A interface timeslot configuration.

    It is probably the 2nd method that will show the best results, because it is highly probable the problem occurs only on few A-intf TS.
    If working with alcatel equipements, check out the method here :
    http://www.erlang.com/forum/erlang/thread.htx?thread=5856
    (lilly’s posts)

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