How secure is wireless communication? Can others intercept my phone calls?
The cordless (49 MHz) and cellular FM phones are not secure. If you don’t want anyone to hear you, don’t use cordless or cellular. The new cordless (900 MHz) spread spectrum and cellular non-FM (ie IS-95, etc.) are secure because of the spreading code used in the modulation technique. In general, spread spectrum systems provide a much higher level of security than the more traditional narrowband systems.
