From: "Junior Gillespie" <junior dot gillespie at gmail dot com>

> Anyone know if its possible to simulate a T1/PRI ISDN with basic
> software and hardware? I'm needing to test some equipment, and have
> looked at my test equipment options, but can't justify purchasing the
> equipment for testing a few items.

It depends on what you need to simulate, and what you have on hand.  A T1 is 
just a 1.5mb serial connection, and you can hook up 2 T1 ports without 
DSU/CSUs and have a T1.  Give more detail.

                                Lee