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Error indication: T200 expired

Viewing 15 posts - 16 through 30 (of 30 total)
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  • #51050 Reply
    Michele
    Guest

    Hi pix,
    T200 which to Kassem refers supervises Ack on the LapDm (layer 2 protocol on the Um interface (MS-BTS)).
    In this case BSC and core network are unaware of that and need to be advised by Error Indication message (from BTS to BSC) in such a way to release the call.

    In case of T200 expiry on Abis interface, BSC is already informed and no ERRIND is necessary.

    #51051 Reply
    Pix
    Guest

    Thanks michelle, I finally found this parameter in our dictionnary 🙂 there is a T200 for LapD management, and others T200 for LapDm management.

    Supervision of acknowledgements for SDCCH SAPI 0. = 220ms
    Supervision of acknowledgements for SDCCH SAPI 3. = 450ms
    Supervision of acknowledgements on RSL for OMU SW. = 1sec
    and so on ….

    #51052 Reply
    pradhan. orissa
    Guest

    tons f thanks 4 providing such valuable info

    #51053 Reply
    kassem
    Guest

    Thank you so much pix/Michele

    #51054 Reply
    Pix
    Guest

    Since we’re all there : thank you one more time michelle 🙂

    #51055 Reply
    Zia
    Guest

    In one case i am facing Handover failure, could any one tell me what is the best value for T200/ N200 to avoid Handover failure and call drops?

    #51056 Reply
    vijay
    Guest

    what is the meaning of SABM command, multiple frame established state? when this would come

    #51057 Reply
    Faiq Ahmadin
    Guest

    Dear All,

    anyone know how to set/change parameter BR9.0 MNTBMASK BIT30 & BIT31 to 0 ?

    Thanks
    Faiq

    #51058 Reply
    sergio.balut
    Guest

    T200 expired problem

    #51059 Reply
    sergio.balut
    Guest

    TCH droprate problem

    #51060 Reply
    ali
    Guest

    Why TCH blocking occurs?

    #51061 Reply
    Anshu
    Guest

    Hardware issue,
    Lesser Trx
    Wrong half rate setting
    DRT Disabled
    Locked Ts or Trx

    #51062 Reply
    wajahat
    Guest

    Can anyone please guide that in which message inside Drive Test (done using TEMS) I can see T200 timer value?
    As with other parameters that are available in Layer 3 Messages (System informations and Assignment commands) how can I find currently set value of T200 from Drive Test.

    #51063 Reply
    pix
    Guest

    hi,

    you might find it in the LAYER-2 messages, not in the LAYER-3. Now, in which msg exactly, i don’t.

    regards
    pix

    #51064 Reply
    Adel
    Guest

    Dear All,
    Kindly support for the causes of call drop due to Release indication.

    Thanks

Viewing 15 posts - 16 through 30 (of 30 total)
Reply To: Error indication: T200 expired
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