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<DIV><FONT face=Arial size=2><FONT face="Times New Roman" size=3>>Obviously
analog loops are powered by the CO, so much of the benefit of <BR>>ISDN-BRI
as the first voice circuit is eroded away for a large percentage of <BR>>the
installed base.</FONT><BR></FONT></DIV>
<DIV><FONT face=Arial size=2>That depends on the situation. For the last
eight years I've been running a TA and have had to deal with that, and it isn't
all that difficult (how do you say UPS).</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>On the other hand, since this is an Asterisk
mailing list, I assume anyone here interested in ISDN BRI has to address the
same power reliability issues with the Asterisk server itself--I will.
Once again, UPS to the rescue. Some BRI cards have a U interface, so they
are as reliable as the computer they are plugged into. Mine does not, but
I just plug the power supply for the S/T U translator into the same UPS that
powers Asterisk. I really don't see a problem here. The adapter
needs less than 10 W! I also have to deal with other loads, such as
lighting and a furnace, without which I won't be talking on the phone for
long. Even most of the analog phones I've been using here need local
power, either because they are cordless or because they are multiline and need
supervision. I really see very few cases where the need for local power
for the NT1 or TA is more than a footnote.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>BTW, if anyone cares, my UPS works with an external
battery and can power my PC, NT1 / TA, DSL, Routers and switches (with POE for
access point and SIP phones) for at least four hours before I need to take more
drastic measures.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Wilton</FONT></DIV>
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