Source : Webster's Revised Unabridged Dictionary (1913)

Radiotelephone \Ra`di*o*tel"e*phone\, n.
   A wireless telephone. -- {Ra`di*o*te*leph"o*ny}, n.

Source : WordNet®

radiotelephony
     n : telephony that uses transmission by radio rather than by
         wire [syn: {radiotelephone}, {wireless telephone}]