At 14:58 1994/08/09 -0700, Lyman Hazelton wrote: ....

in the mission (telephone) data portion of the IRIDIUM system. If a subscriber wants to use their own crypto-system on top of the basic communication service provided by the system, that is up to them. On the other hand, if no encryption is provided by the subscriber, anyone can listen into their conversations. .... Does IRIDIUM provide digital or analog channels?