[carlosjobim]

Cell phone.

[Natfan]

and for old people who cannot use mobile phones?

[carlosjobim]

Then they can't use a wall phone either.

[Natfan]

plain not true, my grandmother can use a wall phone but not a mobile phone

[carlosjobim]

Is she using a wheel dial? Otherwise, the user interface is almost the same for wall phones and cell phones for seniors. Except that you have to press the dial button for it to dial.