Communication method and device for program-controlled telephone exchange and telephone terminal

Abstract

The invention discloses a method and device for communication between a stored program controlled telephone exchanger and a telephone terminal. The method for communication between the stored program controlled telephone exchanger and the telephone terminal comprises the steps that the communication between the stored program controlled telephone exchanger and the telephone terminal is started, a communication message is sent to the telephone terminal, and the communication message sent by the stored program controlled telephone exchanger is received; the communication between the telephone terminal and the stored program controlled telephone exchanger is started before the stored program controlled telephone exchanger sends the communication message to the telephone terminal, and the total number of started telephone terminals is recorded through the stored program controlled telephone exchanger. When the stored program controlled telephone exchanger sends the communication message, the communication message is only sent to the started telephone terminals. Communication between the stored program controlled telephone exchanger and the telephone terminal can be efficiently carried out, the defect of resource waste of the stored program controlled telephone exchanger is overcome, an external telephone terminal can be effectively prevented from being connected to the exchanger, and the reliability of the whole communication system is improved.

Description

technical field [0001] The invention relates to the communication field, in particular to a communication method and device for a program-controlled telephone exchange and a telephone terminal. Background technique [0002] Program-controlled telephone exchange (also known as group telephone) is an important part of the enterprise communication system. Its main functions are extension traffic processing, relay traffic processing, traffic control management, voice prompt processing, and traffic processing based on network technology, Based on optical fiber digital relay processing and wireless mobile terminal, the integration of internal information transmission and other functions makes the internal communication mode of the system more convenient. [0003] The existing program-controlled telephone exchange, as a communication transfer station, periodically communicates with the phone terminal at the next level to know the working status of the phone terminal. That is to sa...

AI Technical Summary

Problems solved by technology

That is to say, the program-controlled telephone exchange sends messages to all the phone terminals at the lower level every once in a while, which will waste the resources of the program-controlled telephone exchange, and the external phone terminals are easy to maliciously access the program-controlled telephone exchange, stealing Information sent by the program-controlled telephone exchange

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