Method of eliminating speech channel circuity in value-added service

Abstract

The present invention discloses a method for eliminating the circuitous telephone channel in a value added service. The method is invented for solving the problem that the circuitous telephone channel exists in the value added service communication and the relay source is wasted. The reported method of the present invention comprises the following procedures: (1). when telephone channel between the calling party and the called party is connected, the value added service platform detects whether the circuitous voice channel exist, if the circuitous voice channel exists, enters procedure two; if the circuitous voice channel does not exist, the procedure is finished; (2). according to the primary group speed interface protocol, a service complement request is sent to the called party terminal by the value added service platform; (3) after the called party terminal receives the service complement request, the telephone channel between the calling party and the called party is bridged, andthe telephone channel between the called party terminal and the value added service platform is released. In this way, the present invention eliminates the circuitous telephone channel between the value added service platform and the called party terminal, and reduces the overactive occupation for the relay source in the specific value added service, which is in favor of the popularization and implementation of the value added service with circuitous telephone channel.

Description

technical field [0001] The invention relates to a value-added service, in particular to a method for eliminating detours in the value-added service. Background technique [0002] In the existing circuit switching network, there are value-added services with different implementation methods. In some existing value-added services (such as color ringing service, double ringing service, etc.), in order to reduce the change of the end office switching office as much as possible, the service platform It is necessary to call back the called switching office. For example, one way to realize the ring back tone service is a trigger method with a roundabout route. In essence, the called switch recognizes that the called user has a "color ring" attribute. According to this attribute, the called switch sets the The call is transferred to the CRBT service platform, and the CRBT service platform will call back the called switching office after passing the authentication, and when the call...

AI Technical Summary

Problems solved by technology

This will result in too much occupation of the trunk. In the case of precious trunk resources, it will affect the promotion of value-added services such as Cailing. It is necessary to consider using existing standards to eliminate circuitous call trunks.

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