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Traffic Measurement and calculation

  • This topic has 5 replies, 1 voice, and was last updated 5 years ago by zabin.
Viewing 6 posts - 1 through 6 (of 6 total)
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  • #34981 Reply

    How do we calclulate the following
    for 5ESS Local Switch from Lucent and AXE-10 from Ericsson with reference to the ITU document
    ITU-T 600. What are the counters that should be taken to calculate offered by these switches.

    ITU-T Recommendation E.600
    2.13 Completion ratio
    2.14 Answer Seizure Ration(ASR)
    2.15 Answer bid ratio (ABR)

    #34982 Reply
    Naveed Shaikh

    Dear Mahalingam
    1. the formula for calculating Call Completion Ratio is
    CCR= (CCS with answer(Out) + CCS Subs Busy+
    CCS Unanswered)/ Out going Call Seizure

    2.ASR(O.G)= CCS with Answer/Out
    going Call Seizure

    ASR(I.C)=CCS with Answer/Calls Carreied I.C

    i DONT KNOW THAT THESE FORMULAS ARE according to ITU documents or not but these formulas are being applied by the Big Telecom operator in pakistan for EWSD and Ax-10(ericsson) switches.

    I would like to know about ABR.
    I will be thankful if you can send me The ITU recomendation docs

    Naveed Shaikh
    MUET jamshoro

    #34983 Reply

    Dear Naveed,

    The ITU earlier known as (CCITT) documents are available here. The E600 is at

    If u are working with AX-10 Ericsson switch, the command and the counter which are used for calculating these parameters will be of much help

    #34984 Reply

    can i use the following formula to calculate ASR ?

    ASR = Successful Calls / No. of bids. *100

    And, what are the possible reasons for lower or drop in ASR.

    And, what are the factors that can affect the ASR?

    #34985 Reply

    I want to know different strategies that need to bbe adopted to improve ASR in EWSD exchabges.
    I am working at OMC and EWSD transits are connected to different exchanges like E10-B ,Huawei ,ZTE ,Ericson
    I want to know how can I improve ASR in different direction.What should I look at .

    #34986 Reply

    how to calculate CER ? Please help me with the equation

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