TRS-80 Model 100: Phone port pinout

Sat Feb 5 14:57:54 CST 2005

On Sat, 5 Feb 2005 11:36:16 -0800 (PST)
Vintage Computer Festival <vcf at siconic.com> wrote:

> 300baud?  I don't see why not.  If you can reliably hear the other
> person you're talking to on a cell phone then why not a 300 baud
> carrier, which is well within typical human voice frequencies?
AFAIK cell phones use compression on the digitalized audio stream to get
it down to 9600 bit/s. (?) This is optimized for speach and may not fit
the frequency spectrum generated by a modem.
-- 

tschüß,
       Jochen

Homepage: http://www.unixag-kl.fh-kl.de/~jkunz/