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    • 4. 发明申请
    • METHODS AND SYSTEMS FOR PERFORMING CALL HANDOVER IN A MEDIA GATEWAY
    • 用于在媒体网关中执行呼叫切换的方法和系统
    • WO2005022934A2
    • 2005-03-10
    • PCT/US2004/028546
    • 2004-09-02
    • SANTERA SYSTEMS, INC.HOU, HaoDOLEH, AhmedHE, YongNGUYEN, Tuan, Minh
    • HOU, HaoDOLEH, AhmedHE, YongNGUYEN, Tuan, Minh
    • H04Q
    • H04W36/12H04L29/06027H04L65/103H04L65/1043H04L65/1083
    • Methods and systems for controlling media stream handover in a media gateway includes establishing a call context between a first termination and a second termination in a media gateway. The first and second terminations are capable of bi-directional media stream communications associated with a call between first and second end users. In response to a handover event affecting the first termination, a third termination is added to the context. The third termination is initially capable of receive-only communications. The context is then modified such that the third termination becomes capable of bi-directional media stream communications and the first termination becomes capable of receive-only communications. The first termination is then removed from the context. The media stream handover may be performed using extensions to a media gateway control protocol and without using a conference bridge.
    • 用于控制媒体网关中的媒体流切换的方法和系统包括在媒体网关中的第一终端和第二终端之间建立呼叫上下文。 第一和第二终端能够与第一和第二最终用户之间的呼叫相关联的双向媒体流通信。 响应于影响第一终止的切换事件,将第三终止添加到上下文。 第三个终端最初只能接收通信。 然后对上下文进行修改,使得第三终端变为能够进行双向媒体流通信,并且第一终端变为能够进行只接收通信。 然后从上下文中删除第一个终止。 媒体流切换可以使用对媒体网关控制协议的扩展而不使用会议桥来执行。