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call setup delay in GSM

Viewing 13 posts - 1 through 13 (of 13 total)
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  • #41143 Reply
    Miguel
    Guest

    Hello:

    Please would somebody help me? I’d like to know the usual time between the moment you press the “send” button and the time you hear the first ring in a GSM network, I read once that this time should be less than 6 secs in a Mobile to fix call and 12 between two mobile phones call, is this correct? I think there should be a difference if it is local or long distance.
    Thanks and regards

    #41144 Reply
    sj
    Guest

    typically, it should be

    #41145 Reply
    Abdel
    Guest

    hi Miguel
    our telecom nowadays we installed a news mobile network with a very long routing.At our first mobile-mbile call test it was about 23sec and fixedline-mobile 18 sec.
    Really it was very terrible,but fortunately we pushed eventually into superfast call only 2sec for mobile-mobile and 3sec for fixedline-mbile

    #41146 Reply
    subok
    Guest

    2sec and 3 Sec….this is impossible

    #41147 Reply
    anboo
    Guest

    Even in lab scenario 2 Seconds is impossible unless we skill all the software processing.. signaling etc.,

    -anboo.

    #41148 Reply
    Ashish
    Guest

    Usually the call set up time varies fom 6-8 secs

    #41149 Reply
    boko
    Guest

    We use automated vehicle mounted equipment to measure call setup delay from the subscriber perspective. Our values are 6.5 MOC GSM-ISDN (internal) and 7.8 for MTC (ISDN->GSM).
    It can be longer if you use compression between different MSC

    #41150 Reply
    SANJIB
    Guest

    One of the solution is hard reset.
    Just remove the DRUs of particular cell one by one and check after that.
    Reason:- Because the DRUs are running by software and possible that the software may be hang.
    when u remove & re-insert the DRU it will automatically “HARD RESET”. bcoz there is a small pin behind the DRU. So when u re-insert it will automatically hard re-set and start loading software from BSC.
    When u reset from front i.e “SOFT RESET”. The dru will b reset but not the Rx power it is radiating.
    So don’t worry. Just remove & re-insert the DRUs.

    #41151 Reply
    Nasser
    Guest

    Is there a tool to measure call setup delay/ post dial delay. If yes please let me know.
    Or if anybody know any other means of measuring this indicator or if you know a formula to calculate this, please let me know if you don’t mind.

    #41152 Reply
    Nasser
    Guest

    Is there a tool to measure call setup delay/ post dial delay for the TDM exchanges. If yes please let me know.
    Or if anybody know any other means of measuring this indicator or if you know a formula to calculate this, please let me know if you don’t mind.

    #41153 Reply
    raj
    Guest

    hi,

    Call setup time is poor(i.e taking more time) in whole BSC. can anyone tell me the possible reasons and possible solutions for that.

    #41154 Reply
    rkc
    Guest

    @raj

    -call setup delay is being reported through field measurements ie DT ?
    -through switch measurements ?
    -or its customer percieved ..delay being reported by subscribers ?

    rkc

    #41155 Reply
    Sal Far
    Guest

    Please I need to know the average time period between MAP cancel location Req and response also between MAP insert subsc. Data Req and response

Viewing 13 posts - 1 through 13 (of 13 total)
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