The number of remaining telephones with impulse dialing?

What do you think how many devices with pulse dialling of the total number of fixed telephones.

Let's say from subscriber base of 3 200 000 subscribers (landline) to the fixed network.

Are the calculation methods of such devices or things about how to make such an assessment?
April 7th 20 at 15:40
3 answers
April 7th 20 at 15:42
No. A huge number of machines can and in the pulsed and in dialton, therefore, from the station it is not always possible to determine.

You can send subscribers a flyer that they have the ability to switch the phone to dialton mode and see how many switched. But many can ignore.
April 7th 20 at 15:44
To see the logs of the telephone exchange. As for me they are very few.
April 7th 20 at 15:46
By far it is to the telephone operators, I think even they have statistics on this matter are.
Part of the method definition is roughly the same as the methodology opinions in a social survey:
Poll a few thousand, and the result extends to the millions (if of course without manipulation).
About the phone company, and statistics that you are wrong. As shown such statistics is not conducted. - dayna62 commented on April 7th 20 at 15:49

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