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Reasons for low ASR and CSR

  • This topic has 30 replies, 1 voice, and was last updated 10 years ago by Brother.
Viewing 15 posts - 1 through 15 (of 31 total)
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  • #45121 Reply
    Muhammad Abu Bakar
    Guest

    Hello Friends!
    I want to know the factors affecting the Call Answer to Seizure Ratio and CSR. Any web link or stuy documents you could point out for me?

    Thanks in advance

    #45122 Reply
    Mano
    Guest

    Any idea about how to increase the ASR.

    #45123 Reply
    sam
    Guest

    Yep there should be some solution to this

    #45124 Reply
    tufail
    Guest

    Hi frnds

    watz the threshold for ASR..

    regards

    #45125 Reply
    jug
    Guest

    Where do we need to check for the deteriorating ASR

    #45126 Reply
    mano
    Guest

    Strange No reply for this

    #45127 Reply
    Muhammad Abu Bakar
    Guest

    I have guessed some of them. And I’m waiting for your valuable comments.

    1. The called subscriber is busy.
    2. Called subscriber is out of coverage range (In case of mobile…)

    3. Authentication failure at IN.

    #45128 Reply
    Pix
    Guest

    call answer to seizure ratio…

    i’ve no idea what it means 🙂 is it comparable to call setup success rate (which is (100% – sdcch drop rate) x (100% – tch assignment failure rate) ) ?

    regarding the CSR, possible problems are due to :
    1 – poor radio quality on the sdcch channel (poor coverage, interference, trx hardware failure or signalling link issues)
    2 – poor radio quality during the tch assignment phase (usually linked to hardware problem on a trx)
    3 – all tch channels are already occupied (tch congestion)
    4 – operation / maintenance activities on the cell (reset / lock / …)
    5 – Abis failures
    6 – call drop rate due to poor coverage during the call
    7 – call drop rate due to failure during a handover

    regards,
    pix

    #45129 Reply
    Mano
    Guest

    Thanks Muhammed,I guess we are in the correct direction.Guess the first two points could be rectified by routing the call to announcments so that the call is actually processed.As for the third I need to research,Guess there are other reasons too

    Pix,Its nothing to do with the Radio Part.Its entirely core related

    #45130 Reply
    pix
    Guest

    mano,

    that’s why it all sounds different…

    #45131 Reply
    Muhammad Abu Bakar
    Guest

    Hello Mano!

    quote:”Its nothing to do with the Radio Part.Its entirely core related”

    I think radio interface does effect the CSR. The last two points of pix are worh consideration.

    Thanks pix!

    #45132 Reply
    Muhammad Abu Bakar
    Guest

    Helo!

    I have come up with some more reasons for low ASR. Now I have to find details of every parameter

    1. Switch Equipment Congestion
    1. No Dialing in Long Time
    2. No Answer in Long Time
    3. No Information in Long Time
    4. No Alerting in Long Time
    5. Exceed Maximum Reattempt Times
    6. Release before Ring
    7. Release before Answer
    8. Call Barring

    #45133 Reply
    Mano
    Guest

    Muhammad

    AS you pinted out reasons are many,but what matters are paramters which we have control upon.For example in the list provided by you,call barring and no answer could be straightaway eliminated since it is due to the customer behaviour.

    #45134 Reply
    Arvin
    Guest

    by the way ,may I know if you have an idea on how to improve an ASR for no answer issue?is there anyway we can minimize the no answer issue?Thanks.

    #45135 Reply
    Muhammad Abu Bakar
    Guest

    Arvin:
    Quote: “by the way ,may I know if you have an idea on how to improve an ASR for no answer issue?is there anyway we can minimize the no answer issue?Thanks.”

    I think you can! Put some penality on the subscribers for not answering 😉

    Or subscriber status is updated in all switch points. So if a subscriber is unavailable, No network resources are seized. Just local switch announces subscriber unavailable…

Viewing 15 posts - 1 through 15 (of 31 total)
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