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AssigneeAlcatel
InventorsSihai Wang, Zhikun Wan, Weihong Chen, Hong Shen, Jie Weng
Estimating the term…
A method for soft switch call control and a soft switch device therefore are provided. 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 the context when the calling party and the called party are controlled by the same media gateway. Thus, it can implement a local loop of TDM voice, reduce IP loop of RTP streams and efficiently reduces network resources such as steps for digital signal processing, echo elimination and etc.
A method for soft switch call control, comprising the steps of:
A soft switch device connected to a number of media gateways via a packet switching network and controlling the media gateways to establish service calls based on a received call signaling, characterized in that the soft switch device analyzes information of a calling party and a called party based on an acquired initial address message (IAM), and informs the media gateways to create a context at said media gateway and to add semi-permanent physical terminations for the calling party and the called party into the context when the calling party and the called party are controlled by the same media gateway.
Dependencies are inferred from the claim text.