[vox-tech] Carrying telephone signal over ethernet

Ted Deppner vox-tech@lists.lugod.org
Thu, 18 Mar 2004 16:10:26 -0800


On Thu, Mar 18, 2004 at 04:02:18PM -0800, Larry Dieterich wrote:
> At 2:13 PM -0800 3/18/04, Mitch Patenaude wrote:
> >I could be wrong, but I believe that Cat5 uses all 4 *pairs* of 
> >wires, and not just 4 wires.  Maybe that's only for full duplex....
> >
> 
> The 100BASE-T4 standard does run on Cat3,4,5 cabling and does require 4 
> pairs
> 
> http://grouper.ieee.org/groups/802/3/10G_study/email/msg01046.html

Interesting.  http://www.bodeen.org/networking/100baset4.html says
100BaseT4 was "practically extinct by 1998".

-- 
Ted Deppner
http://www.deppner.us/