Method and system for scheduling group call across circuit-switch network and soft-switch network.

Abstract

The invention provides a method for scheduling a group call across a circuit-switched network and a soft-switch network, which comprises the steps of initialization, call initiation and call answer, wherein when a call is initiated, after receiving call initialization information sent by a circuit terminal, a circuit switch sends a virtual call message including a scheduled group number to a scheduling trunk gateway; when the call is answered, the scheduling trunk gateway carries out protocol conversion on an answer message, then sends a call pickup message to the circuit switch; and after receiving the call pickup message, the circuit switch sends the answer message to the circuit terminal which initializes the call, and sets up a communications link between the circuit terminal which initializes the call and a soft-switch scheduling terminal which answers the call. By using the method of the invention, the scheduling of the group call between the circuit-switched network and the soft-switch network on the basis of saved system resources and physical ports can be realized so as to improve the call reliability. The invention also provides a system for scheduling the group call across the circuit-switched network and the soft-switch network.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a dispatching group calling method and system across a circuit switching network and a soft switching network. Background technique [0002] The existing telephone network mainly includes the traditional circuit switching network through circuit switching and the soft switching network that provides call control based on software. With the development of technology, softswitch technology is gradually applied to the circuit switching network mainly based on circuit switching due to its advantages of low cost. However, softswitch cannot completely replace circuit switching in a short period of time, so there is a process of convergence and evolution. [0003] At present, in the private network communication of the circuit switching network, especially in industries and departments that require very high communication reliability, such as electric power, railway, petrochemica...

AI Technical Summary

Problems solved by technology

Therefore, limited by the number of physical ports and system resources of the circuit switching network, it is impossible to implement the same group scheduling function in the call processing system composed of the circuit switching network and the soft switching network.

[0007] Therefore, in the interactive network of the circuit switching network and the soft switching network, if the dispatching agent in the circuit switching network fails, the call cannot be realized.

Therefore, the call processing system of the prior art has poor call reliability.

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