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Defining KPIs : CRR and CSSR

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  • #37564


    Can someone please supply me with a formula for calculating Call Retention Rates, on the SSS level ?

    Also, for Call Setup Success Rates I am using the % Successful TCH assignment. Is this correct ?


    PS: Im working with Ericsson equipment.


    Ok, Let me rephrase the question.

    How do I determin the Call Retention Rate from standard Ericsson Switch counters. I Cannot seem to find counters that indicate that means by which the call is terminated.

    For eg, I know on Siemens equipment there are counters specifying A/B Release etc – is there something equivalent on Ericsson ?

    Please assist…

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