Chief Transmission and Switching Engineer(JP

Let's do study and measures of "Telecommunication chief engineer examination" where a good teaching material doesn't exist though the examination contents is advanced little by little.

2010/09/04

Topic of call processing of PBX.

Yes, I think that the material of the study of the chief telecommunications engineer goes by the exchange today. Which program is which problem of judging whether to call and to do [no] processing though today's material is a call processing program of the switchboard. Then, today's material is [kochira] ↓↓.



- Outline of call processing program of digital switchboard for telephone


The call processing program calls and is [niha] and becomes empty, is in the call while talking over the telephone while receiving the dial figure this steady state, and has achieved the exchange connection operation by observing, analyzing the processing demand in these states, and doing processing necessary for the following state transition.

These sentences are correct.
- It ..calling.. ..[niha].. becomes empty, and this steady state exists while talking over the telephone while receiving the dial figure the call inside.
- The exchange connection operation is achieved by observing, analyzing the processing demand, and doing processing necessary for the following state transition.



An internal processing program is composed of the program etc. that detect the call out, the response, the local loops such as cutting or the change in the relay line.

These sentences are wrong.
- An internal processing program: It is composed of the program etc. that translate the program dial figure to which the connection status is decided based on the processing demand detected by the input process program.
- ・・・ Internal processing is opposite to the output processing.



The output processing program possesses the function to decide the connection status based on the processing demand detected by the input process program, and is composed of the program etc. that translate the dial figure.

These sentences are wrong.
- The output processing program: It is composed of the program etc. that detect the program, the call out that drives a telephone call road system device etc. , the response, the local loops such as cutting or the change in the relay line.
- ・・・ Internal processing is opposite to the output processing.



Well, how?In short, the explanation of "Internal processing program" in the problem sentences and "Output processing program" was only opposite to sentences of the mistake apart from correct sentences. Roughly, the division really composed of the program of "Dial figure translation" like the input process though it says is not in the output processing. 。。Then, around here today.

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