IT is called the CISCO IP  phone system, it uses  the same connection for data and voice


On Wed, Jun 8, 2011 at 4:03 PM, Haggai Nyang <haggai.nyang@gmail.com> wrote:
Corrections are welcome as to whether my thinking is correct, but a computer using a non-poe (ordinary LAN) cabling system uses only 4 strands (1,2,3,6) so you can carry two analog phone channels on that as well
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