| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for soft switch call control and a soft switch device thereof. <P>SOLUTION: The soft switch device acquires an initial address message IAM at a calling side, analyzes information of the calling party, and the called party based on the acquired initial address message IAM, and informs the media gateways to create a context and to add TDM semi-permanent physical terminations of time slots, corresponding to the calling party and the called party into context, when the calling party and the called party are controlled by the same media gateway. Thus, a local loop of TDM voice can be implemented, reduce IP loop of RTP streams and efficiently reduce network resources, such as steps for digital signal processing, echo cancellation, etc. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
