Re: Disconnects for "dedicated ISDN"

Ron Parker (rparker@gator1.brazosport.cc.tx.us)
Sat, 23 Aug 1997 09:00:09 -0500 (CDT)

I've seen this happen on the Adtran XRT unit I use. I've left it
connected for days at a time but I've also seen it drop the connection
from time to time. I don't really think it is the Adtran unit causing the
problem. I generally lean toward the telco as the problem source.

My other ISDN experience has been with Adtran ISU128 equipment. This is a
more heavy-duty TA. We used it for a dedicated ISDN link that went about
50 miles for over a year and found it to be very reliable. We had it set
to automatically redial if something happened to the circuit. I think
that it went down a total of maybe three times during the time we used
it. In every case it was a telco problem and the equipment came right
back up when the telco fixed the problem. Note that this doesn't count
times when the circuit may have had a momentary failure and restored
itself before my monitoring equipment detected it.

--
Ron Parker
Network Communications Specialist
Brazosport College




On Sat, 23 Aug 1997, Imran Zalfackruddin wrote:


> They connect fine but they eventually get dropped - sometimes they remain
> connected for days other times
> they are connected for a few hours. Sometimes they have to artifically
> create access to remain alive other times
> this does not help.