re do we need the clipper for cheap security gtoal gtoal com graham toal writes in the uk it s impossible to get approval to attach any crypto device to the phone network anything that plugs in to our bt phone sockets must be approved for some reason crypto devices just never are whats the difference between a v bis modem and a v bis modem i m not being entirely silly here what i m pointing out is that the modems that they have already approved for data transmission will work just fine to transmit scrambled vocoded voice absolutely i just meant that no secure dedicated crypto device has ever been given approval guerrilla underground devices should be well possible with today s high speed modems not that i can think of many v bis modems that are approved either mind you just the overpriced couriers can someone tell me if hardware compression is or is not needed to run digital speech down k i think it is i ve heard it s not lets say bit samples would raw data at the corresponding sampling rate be usable if not how fancy does the compression need to be g
