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Call waiting, Holding service

  • This topic has 7 replies, 1 voice, and was last updated 14 years ago by MIFO.
Viewing 8 posts - 1 through 8 (of 8 total)
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  • #42718 Reply
    Sivakumar
    Guest

    Hi All,

    A party is in conversation with B party. During this time C party calls the B party and C listens the call waiting announcement.

    Consider that all 3 subscribers are in the differnet MSC.

    During this time,how many airinterface channels are seized by B party.

    My question is will there be any assignment request from the B party BSC to the MSC for the new call waiting call??(hope u guys understand my question)

    Call holding:-
    —————

    When B party holds the ongoing call of A party and starts the conversation with C party, During this time how many channels are siezed?

    #42719 Reply
    Boko
    Guest

    As I know there is no change in the air interface – one call or multiple calls in a conference call doesn’t make any difference.

    #42720 Reply
    Vijay
    Guest

    Hi Siva,

    Conferenceing controlled in MSC which connects all three external Circuits toiwards the A=Interface CKT towards BSS.

    Regards

    #42721 Reply
    mifo
    Guest

    Hello everybody,

    Is there someone that can tell me or confirm if the signaling for Call Waiting go through SACCH.
    If not what Logical CHannel is used for Call Waiting
    Thank you very much
    Regards

    #42722 Reply
    Pix
    Guest

    the orignating mobile is already on TCH (cf. message flow, message “ALERTING”)

    (is that what you meant by call waiting ?)

    #42723 Reply
    MIFO
    Guest

    Thank you Pix for the answer,
    it means that signaling can use as well TCH
    I didn’t know that
    If I take the example of an SMS,
    SDCCH is used on Idle mode, and SACCH on Active mole. I believed that it was the same for the call waiting signaling (I believed that the signal that tell there is an other call go through SACCH) but it seems not.
    Regards

    #42724 Reply
    Pix
    Guest

    actually the alerting is on the FACCH, which is a “sub” channel of the TCH.

    glad i could help 🙂

    regards

    #42725 Reply
    MIFO
    Guest

    Thank you Pix,
    I should have known this,

    In fact it s logical
    because SACCH is just reserved for measurement and SMS

    so the alerting is on the Hand over channel :FACCH

    Regards

Viewing 8 posts - 1 through 8 (of 8 total)
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