Secrets of modern communication: a mysterious tone mode

Did you ever wonder why when you dial a number on the mobile phone you hear a dial tone, but at home on a stationary machine – the flicks? Or why the set of additional prefixe support, we are told: “make Sure that the tone dialing mode of the phone is switched on”? But what is it and how is it activated?

For a start, the phone network – it is primarily an electrical circuit, and the tone mode is one of its parameters. The ATS is a generator, which generates an electric current, a telephone device opens and closes the circuit. When you pick up the phone to call, the phone enters the membrane current. Then you hear the characteristic beep.

Pulse and tone mode are two ways by which to the PBX can transmit the information about what number you dialed. When dialing in the pulse mode, you can hear the clicks. Their number depends on the digits that you have pressed. Therefore, the set of units we hear one click, and the set of zero - ten.

This method set the desired number is most often used on the old ATS, but most landline phones are automatically configured on it. The main advantage of pulse dial consider the possibility of its implementation on modern electronic circuits, as disadvantages – a long set and no characters "grid" and "star". That is why in the 60-ies of the last century were developed tone mode dialing.

This mode assigns each digit of a certain frequency – tone. People with a good ear for music, perhaps even be able to determine what number was dialed, hearing such a signal. Tone mode is automatically used in mobile phones and stationary phones more often to connect have to click “star”, press “Tone” or to select a certain menu option. Of course, this does not apply to old rotary phones. However, the transfer of the phone to tone mode doesn't guarantee anything, because it only support the most advanced digital or cellular networks.

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They are in every major city, so you will easily be able to become their subscriber. If your network supports tone dialling, you will still have to contact your operator of fixed line to connect this service, as well as related additional functions. For example, caller ID and blocking calls from certain numbers.

Another interesting feature that is available if the connected tone mode is the ability to call hold. So you will always be able to answer an important call, and your friends and colleagues will not irritate your permanent employment.

Using the tone dialler, remember that additional services are often charged separately and must be supported by your model of a stationary camera.

In short, today there are two modes of dialing: tone and pulse. Tone mode is more modern and is used by default in mobile phones that allows their owners to use a number of functions of modern networks. Besides, he has no flaws “old” switched set.