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    METHOD AND SYSTEM FOR PROVIDING MULTIMEDIA RING BACK TONE SERVICE BY USING RECEIVER-SIDE SWITCHING CENTER
    1.
    发明公开
    METHOD AND SYSTEM FOR PROVIDING MULTIMEDIA RING BACK TONE SERVICE BY USING RECEIVER-SIDE SWITCHING CENTER 有权
    方法和系统提供多媒体RÜCKRUFTONDIENSTES用接收端调解中心

    公开(公告)号：EP1790151A2

    公开(公告)日：2007-05-30

    申请号：EP05765846.0

    申请日：2005-06-28

    申请人： SK Telecom Co., Ltd.

    发明人： PARK, Seongsoo ,  LEE, Sangshin ,  WOO, Daesic ,  LEE, Donghahk, 809-1101, Imaechon Jinheung Apt. ,  CHUNG, Wonsuk ,  LEE, Joosik ,  LEE, Myungsung

    IPC分类号： H04M3/42

    CPC分类号： H04M3/42017 ,  H04M7/0072 ,  H04M2207/18 ,  H04W4/16 ,  H04W8/22 ,  H04W8/24

    摘要： Disclosed is a method for providing a multimedia Ring Back Tone (RBT) service by using a receiver-side switching center, which allows RBT sound sources previously set in a sound source-providing server by a called subscriber to be reproduced to an originating terminal by means of a Home Location Register (HLR) and the sound source-providing server for storing the RBT sound sources when a calling subscriber telephones the called subscriber, the HLR storing profile information including whether the subscriber has joined the RBT service, which comprising the steps of: (a) receiving an ISDN User Part (ISUP) call connection request message including information (multimedia codec information) regarding a multimedia codec from a caller-side switching center when the originating terminal attempts a call connection to a terminating terminal; (b) transmitting the ISUP call connection request message including the multimedia codec information to the sound source-providing server; (c) requesting the caller-side switching center to set the multimedia codec, thereby activating a routing path for the RBT service;' and (d) receiving a RBT sound source selected using the multimedia codec information from the sound source-providing server and transmitting the RBT sound source to the caller-side switching center.