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<DIV dir=ltr align=left><SPAN class=555525101-24022006><FONT face=Arial
color=#0000ff size=2>Here's two articles that will answer your
question:</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=555525101-24022006><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=555525101-24022006><FONT face=Arial
color=#0000ff size=2>T1 redundancy: <A
href="http://www.dataprobe.com/switch/sw_lineprot.html">http://www.dataprobe.com/switch/sw_lineprot.html</A></FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN
class=555525101-24022006> <A
href="http://www.dataprobe.com/switch/taps.html">http://www.dataprobe.com/switch/taps.html</A></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=555525101-24022006><FONT face=Arial
color=#0000ff size=2>Asterisk redundancy
(DUNDI): <A
href="http://www.dundi.com/">http://www.dundi.com/</A></FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=555525101-24022006><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=555525101-24022006><FONT face=Arial
color=#0000ff size=2>Unfortunately the world of 100% uptime relies
on redundancy, hence more than 1 box.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=555525101-24022006><FONT face=Arial
color=#0000ff size=2>Obviously you would want hardware redundancy within the
box, such as dual power supplies, dual NICs and RAID
configuration.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=555525101-24022006><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=555525101-24022006><FONT face=Arial
color=#0000ff size=2>Thanks</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=555525101-24022006><FONT face=Arial
color=#0000ff size=2>Bjorn</FONT></SPAN></DIV><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> asterisk-biz-bounces@lists.digium.com
[mailto:asterisk-biz-bounces@lists.digium.com] <B>On Behalf Of </B>Ron
McCarthy<BR><B>Sent:</B> Thursday, February 23, 2006 3:12 PM<BR><B>To:</B>
asterisk-biz@lists.digium.com<BR><B>Subject:</B> [asterisk-biz] Enterprise Level
VOIP<BR></FONT><BR></DIV>
<DIV></DIV>Hello All-<BR><BR>I have looked around quite a bit, and cant seem to
find anyway to setup a * box/cluster to have 100% uptime. Does anyone have any
articles or knowledge on setting up a system that could be made to handle a
server crashing, yet phones still be able to operate, I know this can be
accomplished with a backup server and DNS SRV records, but that requires PRI's
in both machines and a bunch of mess from what I have read. If that is the only
way of doing failover is via a backup server, is there anyway to have all my
PSTN connections on one server/box, such as the Cisco Access Servers that
provide SIP/MGCP -> PSTN connectivty?<BR><BR>Any help on this would be
great.<BR><BR>Thanks!<BR>Ron<BR></BODY></HTML>