re clipper chip and crypto key esc in article apr memex co uk peter memex co uk writes i thought it was quite difficult to record a modem session at some intermediate point on the line maybe they have taken a crash course in data comms and have a unit that demodulates the tones and stores the digital stream for decryption later this would still suffer from the called babt it has been stated either here or in the uk telecom group that they will not approve equipment that does encryption i don t know if this is true or not but this would make a good test case peter ilieve peter memex co uk you forget the obvious if it is an authorised tap then it can be done at the exchange if the exchange is digital then i suspect that you can auto monitor a line and pickup the full link therefore syncing a piggyback modem on the line would not be impossible i suspect mike h mike avon demon co uk
