Call control method, mobile switching center and communication system

Abstract

The invention discloses a call control method, a mobile switching centre and a communication system thereof through a plurality of implement methods. The call control method comprises that when receiving a call request message from the voice group call service initiated by the terminal, the mobile switching centre judges weather the terminal which sends the call request message has a calling authority of the voice group call service or not and builds a group call channel for the terminal with the calling authority in the group calling region including the voice group call service. Through controlling the initiating authority of the group call service by using all the implement methods of the invention, the controlling of the group call service is convenient, and the the application management of the actual service is convenient, the radio resource can be well controlled, the service quality of the service provider can be improved, in addition, the use of trunking service is promoted to be more normative, and the defaults that the radio resource is used randomly, the application management is inconvenient and the radio resource is wasted in prior art can be solved effectively.

Description

technical field [0001] The present invention relates to a call control method, in particular to a call control method for voice group call service; the present invention also relates to a mobile switching center, in particular to a mobile switching center for call control of voice group call service; The invention further relates to a communication system, in particular to a communication system for controlling voice group call service calls, which belongs to the field of communication. Background technique [0002] With the development of mobile communication services, the voice group call service (Voice Group Call Service, referred to as VGCS) is also gradually developed. VGCS is a voice call service that realizes many-to-many, allowing multiple people to speak at the same time. The number of people can be set to a specific number, such as 6; but there is no limit to the number of listeners. The voice group call service can be applied to different occasions such as railwa...

AI Technical Summary

Problems solved by technology

[0004] In the process of implementing the present invention, the inventor found that there are at least the following problems in the prior art: the existing voice group call service only Group call ID, so the default subscribers can initiate the group voice group call service

Since only the group call ID of the contracted VGCS is judged when making a call, all terminals that meet the group call ID can initiate group call information, which will cause random use of wireless resources and bring inconvenience to application management during actual operation , even if the terminal does not send a call request message or group call information in a certain group call channel, the network side still needs to query or collect the information of each group call channel in the group call area, resulting in a waste of wireless resources

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