Defined mode
When pulse dialing handset audible clicks as if the circle disk phone spinning and cracking. The number of clicks on each figure corresponds to its value. The exception is zero - it is transmitted ten pulses.

In tone mode when dialing hear different pitched sounds. Each figure corresponds to a single sound (tone).
Change the mode
Mode from pulse to tone usually changes by pressing the * key (asterisk) in front of the room.

An example of a set: * 8 846 222 22 22. Button located in the bottom row. This method allows you to change the mode only once, i.e., each time before the set will need to press the asterisk. To switch the mode one time and "long" click on phone button Tone or the Tone (T/I).