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TFNDROP Vs TFNCEDROP E///

Viewing 6 posts - 1 through 6 (of 6 total)
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  • #60645 Reply
    Firas
    Guest

    i sent by mistake to the HO drops article. sorry
    the question is ” what is the difference between TFNDROP & TFNCEDROP in E/// counters

    #60646 Reply
    Bijoy
    Guest

    TFNDROP The total number of dropped full-rate TCH in underlaid subcell.
    TFNCEDROP The total number of dropped full rate TCH connections in underlaid subcell that occur when a subscriber to subscriber connection has already been established. The establishment of subscriber to subscriber connection is assured if the connection is dropped between the DTAP messages CONNECT ACKNOWLEDGE and RELEASE or DISCONNECT (whichever of RELEASE or DISCONNECT comes first). For inter BSC handovers and inter system handovers, the target BSC assumes that the call connection is already established, and the counter is incremented in the target BSC in case of dropped connection.

    #60647 Reply
    Firas
    Guest

    does it mean that TFNDROP is counting drops before they are established, how is this possible?

    #60648 Reply
    Bijoy
    Guest

    Hi Firas
    TCH drop is considered after sucessful TCH seizure(individually for both ends).TFNCEDROP is considered as call drop during conversation.It can also happen that the seized TCH(MOC ones) gets dropped before the subscriber to subscriber connection takes place.

    Br\\
    Bijoy

    #60649 Reply
    Firas
    Guest

    i guess and according to the data we have and your answer (Bijoy)the TFNDROP will count drops while one connection is established and when both are established, while TFNCEDROP counts only drops while the 2 subscribers are established?

    #60650 Reply
    Bijoy
    Guest

    Exactly.

Viewing 6 posts - 1 through 6 (of 6 total)
Reply To: TFNDROP Vs TFNCEDROP E///
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