about null modem

From: Wen Jia Yang (tonyblair@xxxxxxxxx)
Date: Fri Jan 04 2002 - 06:03:28 GMT-3


   
can anyone pls explain what null modem is?
i am going to use ,aux 0----aux 0 without any modem between them,is that possib
le for me to practice dialing tech with that "null modem"????



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