Voice call method, system, device and gateway device of trunking communication system

Abstract

The invention relates to a voice call method, system and device for a trunking communication system and a gateway device. The method comprises the steps of receiving a voice call request which is sent by a calling terminal and contains a first preset prefix and a called terminal number, carrying out routing according to the first preset prefix, then converting the called terminal number into a first analog signal, and then sending the first analog signal to a called system; receiving a second analog signal of the called system in response to a call, and transmitting the second analog signal to a calling system; and receiving a called terminal number which is sent after the calling system confirms establishment of the call, converting the called terminal number into a third analog signal, transmitting the third analog signal to the called system, and enabling the called system to seek a called terminal according to the called terminal number and then establish voice call connection. According to the method, the system and the devices, the single call between the calling system and the called system can be realized in the trunking communication system; the call between any numbers of the calling system and the called system can be realized; and the problem that in the prior art, the call between the numbers of two trunking communication systems is limited can be solved.

Description

【Technical field】 [0001] The invention relates to the technical field of communication, in particular to a voice calling method, system, device and gateway equipment of a trunking communication system. 【Background technique】 [0002] Trunking communication systems are widely used in public security, rail transit, airports, ports, oil fields, forest farms, etc. The trunking system has gone through the analog (such as MPT: Ministry of Public Telecommunications: Ministry of Public Communications) trunking era, and has developed rapidly to the digital (such as PDT: Police Digital Trunking: Police Digital Trunking Communication System) trunking era, and is developing towards the digital age In the process, there must be a stage of digital and analog sharing. In a solution of the prior art, the PDT system and the MPT system are interconnected by a PDT-MPT gateway, but in this solution, group number mapping is used for association between the two systems, and the number of mapping...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a voice call method and system of a trunking communication system, which are used to realize a single call between the calling system and the called system in the trunking communication system, and can realize any number between the calling system and the called system. Inter-call to solve the problem of limited number calls between two cluster communication systems in the prior art

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