Sounds like a cookbook a terrorist could make use of....

-----Original Message-----
You could easily make all analog phones non functional, digital phones are
another story though depending on if you have them in your area since they
operate on a high frequency.  Normal analog phones when turned on search for
a
control channel, the strongest one near them.  You could do two things,
either
transmit on all the control channels near you, probably 4 or so, sending
garbage
to confuse the phone so it can't find a signal or you could emulate a
control
channel that's not near you so the phone always goes to that one, yet it
can't
establish a call though it.