Realization of junction centre exchange switchboard and dual junction centre exchange switchboard calling method

Abstract

The converging office (CO) is configured a small switcher group (SSG) which group number is coincident with the group number configured on the adscription register HLR. This method includes steps: (a) HLR sends the synchronized data (SD) to CO. (b) CO judges the SD operation. If the operation is one to increase the user of SSG, CO inserts the user into the rotating selection queue (RSQ) in this group. If the operation is one to delete the user of SSG, CO deletes the user from the RSQ of the related group. (c) When SSG is called, a user rotating selection is executed. Co selects a user from RSQ as the called party of this call. According to a calling method in SSG of twin COs, a max re-calling number (MRN) is preset. After CO connects the coming call to the end-office (EO) and EO returns a busy signaling, CO keeps starting a re-calling until (1) the calling connecting to EO succeeds or (2) EO non-busy fails or (3) the accumulated re-calling number reaches MRN.

Description

technical field [0001] The invention relates to the field of tandem offices of digital program-controlled exchanges, in particular to a method for realizing a small exchange group of a tandem office and a calling method for a group of small exchanges of a double tandem office. Background technique [0002] The existing telecommunication network has a variety of models, and some models are aging, and the corresponding manufacturers no longer maintain them. However, their business support capabilities are poor and cannot meet the needs of users; and the end office user data management is scattered, which increases operating costs. [0003] Since the tandem office realizes the centralized management of the user data of the end office, the requirements for the end office are reduced, the vitality of the end office is extended, and the centralized management of user data can be achieved with a small investment, and the business trigger is flexible and diverse. Business logic rel...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a method for realizing the small exchange group of the tandem office of the program-controlled exchange and a method for calling the small exchange group of the double tandem office, so as to solve the problem that the tandem office cannot realize the group selection service of the small exchange in the prior art At the same time, it solves the problem of wheel selection conflicts in the application environment of double tandem offices

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