View Single Post
  #3   Report Post  
Old August 27th 07, 06:02 AM posted to sci.electronics.basics,rec.radio.amateur.antenna,alt.cellular.cingular,alt.internet.wireless
RHF RHF is offline
external usenet poster
 
First recorded activity by RadioBanter: Jun 2006
Posts: 8,652
Default A more rational approach -- how I would like to change the cell phone industry.

On Aug 26, 8:44 pm, "Brenda Ann" wrote:
"John Navas" wrote in message

...

POTS phone lines are very limited. IIRC from my work with those systems,
about 300-3600 Hz. Strictly human voice range, not meant for hi-fi.
Special
lines are still available for hi-fi use as audio STL's.


POTS lines are encoded at 64 Kbps, which is why V.90 modems work, and
which is sufficient for decent audio, albeit not "hi-fi".


POTS lines are not encoded at all. Hence "Plain Old Telephone Service" which
can be used with any telephone (ain't no decoders in a WE 500 deskset) that
uses a DC line.


POTS de PANS . . . DOH !