Answer: The dial tone is used to let the telephone user know that a signal is available, and that the system is working. If no dial tone, no call can be placed. Most cell phones have those little bars ...

In addition to the long curly cords, and the part where they are permanently attached to a wall, old-fashioned landlines have something else that we’ve lost in the cell phone revolution: a dial tone.

Does a cellphone have a dial tone? Mobile cellphone never have a dial tone. Before the cellphone came into common usage, a dial tone on a landline told you that the line was available; however, it is ...