re do we need the clipper for cheap security there are chips which perform the voice compression expansion they can t be expensive because they exist in many phones connected to pbxs or on the pbx line cards as well as in a lot of equipment which compresses voice grade circuits to save the cost of long distance leased t s or satellite circuits i can t remember the generic term for these chips my impression is that this was a big deal years ago but circuits have gotten so cheap that it isn t done much now lew lew glendenning rlglende netcom com perspective is worth iq points niels bohr or somebody like that
