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<DIV><SPAN class=544084121-25112004><FONT face=Arial color=#0000ff size=2>Have a
look at <A
href="http://www.twacomm.com/Catalog/Model_PF-6A.htm">http://www.twacomm.com/Catalog/Model_PF-6A.htm</A></FONT></SPAN></DIV>
<DIV><SPAN class=544084121-25112004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=544084121-25112004><FONT face=Arial color=#0000ff size=2>As for
T1/E1, you have a big business, get a decent UPS and a
generator.</FONT></SPAN></DIV>
<DIV><SPAN class=544084121-25112004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=544084121-25112004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B>
asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com]<B>On Behalf Of </B>Duane
Cox<BR><B>Sent:</B> Thursday, November 25, 2004 10:18 AM<BR><B>To:</B>
Asterisk Users Mailing List - Non-Commercial Discussion<BR><B>Subject:</B> Re:
[Asterisk-Users] How to make/recieve call using asterisk whenthereis a power
failure?<BR><BR></FONT></DIV>
<DIV><FONT face=Arial size=2>We use several Dell 2650 servers. Order
them with the dual DC power supply option.</FONT></DIV>
<DIV><FONT face=Arial size=2>Buy a row of -48 batteries and a -48 power
source, your servers will stay up for hours.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV> </DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=tinkoon@lga.net.sg href="mailto:tinkoon@lga.net.sg">TinKoon</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=asterisk-users@lists.digium.com
href="mailto:asterisk-users@lists.digium.com">'Asterisk Users Mailing List -
Non-Commercial Discussion'</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Thursday, November 25, 2004 3:56
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [Asterisk-Users] How to
make/recieve call using asterisk when thereis a power failure?</DIV>
<DIV><BR></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Hi,<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I am supportive of the asterisk,
but I have some concern, though the concern also applies to traditional pbx
as well. Hope someone can shine some light into it.
Thanks.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">During a power failure
situation, analog pstn lines that connect directly to the analog phones will
most likely still be able to make and receive calls.
<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">However, for the Asterisk
implementation, unless you have a huge ups, you will not be able to make and
receive any call during power failure, since there will be no power to the
Asterisk server. And since all the incoming lines, be it analog lines or
T1/E1 are connected to the Asterisk, these lines wont be able to function at
all. <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">In some situations, even though
you may have a ups for the Asterisk, network equipment, channel banks, etc,
but your ATA, IP phones which located near to your users and probably not
connected to the UPS, so these devices wont be able to function.
<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">And even if you have a ups,
after an hour or two, your uos will drain out, so how?
<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Though we can have few analog
pstn lines as standby, but these lines are mostly use for making outgoing
calls rather than receiving incoming calls. For a prolong power failure
situation, these lines cant really help much, so businesses will be
seriously affected. It is possible to contact the telco to re-direct the
incoming calls to the standby analog lines, however, it will generally take
couple of hours for the telco to make the switch and very likely there will
be a fee involve. <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I read from this forum that many
asterisk implementations had been carried out, I wonder how these
implementation take care of the power failure situation? Can someone share
the views and implementations?<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P></DIV>
<P>
<HR>
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