// COMPLETE THREAD

Re: Compressed/Encrypted Voice using Modems

2 expanded posts · every known parent and child

NODE 326e15a3Re: Compressed/Encrypted Voice using Modems jim@tadpole.com (Jim Thompson)Mon, 8 Feb 93 02:16:02 PST

The shannon limit of 22kpbs has something to do with the
frequency response of a 'standard' (old, non digital) POTS
phone line.

But you should know, you're Phil Karn (and I'm not.)

Jim

NODE 3cb876bfRe: Compressed/Encrypted Voice using Modems Phiber Optik <phiber@eff.org>Mon, 8 Feb 93 08:50:43 PST

> 
> The shannon limit of 22kpbs has something to do with the
> frequency response of a 'standard' (old, non digital) POTS
> phone line.
> 
> But you should know, you're Phil Karn (and I'm not.)
> 
> Jim
> 

I spent the time posting a considerable message about this subject last night,
and I've yet to see it echoed back to me on the list.  Did ANYONE get it?
Topics were Shannon's capacity formula, Shannon limit, Nyquist 2-bit rule, etc.
I'd be very annoyed if it just 'disappeared' into the bit-bucket.