1 and zero
0 and 1 have no letters corresponded with them
An autodialler is an electronic device which can automatically dial telephone numbers to communicate between two points in a network.
An autodialler is an electronic device which can automatically dial telephone numbers to communicate between two points in a network.
Speed dialing is a system that allows you to dial an abbreviated code (usually one or two digits) instead of dialing the entire telephone number. You must program your speed dial numbers before using them.
the two letters are Q and Z
The answer is Q AND Z. (A push button phone has all of the letters.)
The next two square numbers after 30 are 36 and 49
Actually, there are the letters oper next to the 0. If your question was which 2 numbers are not assigned letters then the answer of 0 and 1 would hold true. But the question merely asks which 2 numbers have no letters near them.
Even in the tiniest village in England, there are no two-digit telephone numbers.