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.

2010/09/14

It is a problem of H.323.

Well, let's study the chief telecommunications engineer today. H.323 will really neatly feel a detailed protocol name for today's material in H.323 calmly reading the problem because there are a lot of confusing problems. whether to say regret to the remembranceThen, today's material is [kore] ↓↓.



- System that achieves communication by protocol of H.323



The H.323 terminal is a device that the user uses to do a real-time voice transmission, the image transmission, and the data communication.

These sentences are correct.
- Woo
As for "XXX terminal", isn't any protocol so for the user to use?



The H.323 gateway has the voice and the transducer function of the form of the transmission of information on the image needed to communicate between the H.323 terminal and the terminal of an existing line switching network like the telephone network etc.

These sentences are correct.
- The voice and the transducer function of the form of the transmission of information on the image are done, and the gateway is needed to communicate between terminals of an existing line switching network like the telephone network etc.



The H.323 gatekeeper has the communication mode control function etc. to secure the quality of the function and the communication that converts caller's telephone number etc. into Internet Protocol address.

These sentences are wrong.
- The gatekeeper manages caller's telephone number and the relation with Internet Protocol address, etc.It doesn't have the communication mode control function.
- The gatekeeper doesn't work to make a mistake .."Communication mode control function" in the latter half.. ..the part.. though it is correct around of "The telephone number is converted into Internet Protocol address" for forequarters of sentences ..so...



H.323MCU has a broadcast function etc. necessary to achieve the multi point communication (communication done with three terminals or more).

These sentences are correct.
- MCU communicates a multi point.


Well, how?Sentences of "Mistake" put there is no confidence for a moment, and "Here might be a mistake" might be a correct answer of the search for saying though it is considerably confusing because the problem of this hand does the writing of nasty sentences the stern can be very removed by the pronunciation. Then, around here today

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