you can buy an ATT 808A emergency transfer panel on ebay for less than 50 bucks and it will provide emergency phone service for up to 5 lines. when the 808a has power it connects the CO to the FXO port and the FXS port to the analog phone. When the 808 loses power, it connects the CO directly to the analog phone providing CO dialtone. <br>
<br><br><div class="gmail_quote">On Tue, Jun 8, 2010 at 6:32 PM, Norton, Mike <span dir="ltr"><<a href="mailto:mikenorton@pwsd76.ab.ca">mikenorton@pwsd76.ab.ca</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div link="blue" vlink="purple" lang="EN-CA">
<div>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">Typically I bridge the main POTS
line that the FXO uses to a “red jack” at the reception area. To
avoid having people pick up the “red phone” while the FXO port is
using the line, the phone normally stays stored in a drawer somewhere. During extended
outages, office staff take out the phone and plug it in. My schools are all
remote rural locations (frequent power outages), so the ones that have this
set-up are well-rehearsed at the procedure. It helps that the 10 minutes of UPS
is already a huge improvement over the legacy key systems that VoIP is replacing.</span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"> </span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">-- </span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">Mike Norton</span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">I.T. Support</span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">Peace Wapiti School Division No.
76</span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">Helpdesk: 780-831-3080</span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">Direct: 780-831-3076</span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"> </span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"> </span></p>
<div>
<div style="border-width: 1pt medium medium; border-style: solid none none; border-color: rgb(181, 196, 223) -moz-use-text-color -moz-use-text-color; padding: 3pt 0cm 0cm;">
<p class="MsoNormal"><b><span style="font-size: 10pt;" lang="EN-US">From:</span></b><span style="font-size: 10pt;" lang="EN-US"> <a href="mailto:cisco-voip-bounces@puck.nether.net" target="_blank">cisco-voip-bounces@puck.nether.net</a>
[mailto:<a href="mailto:cisco-voip-bounces@puck.nether.net" target="_blank">cisco-voip-bounces@puck.nether.net</a>] <b>On Behalf Of </b>Erik Potteiger<br>
<b>Sent:</b> June-08-10 12:50 PM<div class="im"><br>
<b>To:</b> '<a href="mailto:cisco-voip@puck.nether.net" target="_blank">cisco-voip@puck.nether.net</a>'<br>
</div><b>Subject:</b> [cisco-voip] School Building VoIP 911</span></p>
</div>
</div><div><div></div><div class="h5">
<p class="MsoNormal"> </p>
<p class="MsoNormal"><span lang="EN-US">Hello,</span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal"><span lang="EN-US">I am thinking about installing a VG224 for
about 15 lines at a public building. I have UCM 6.1 and a Cisco 2801 SRST
with 2 FXO ports both FXO ports are connected to POTS lines and all 911 calls
are routed out the POTS lines. I also have a fire alarm that will be
connected to 2 POTS lines. All components are on a UPS that can handle a
power outage of 10 minutes. After 10 minutes all phones would be dead
except for the fire alarm system. I am concerned about 911 during a power
outage. If all the phones are dead in a public building during a power
outage is this illegal? I am not concerned about safety almost everyone
in the building carries a cell phone. I am thinking keeping one POTS line
at the front desk. Any suggestions or information about 911 laws.</span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal"><span lang="EN-US">Thank you,</span></p>
<p class="MsoNormal"><span lang="EN-US">Erik</span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
</div></div></div>
</div>
<br>_______________________________________________<br>
cisco-voip mailing list<br>
<a href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a><br>
<a href="https://puck.nether.net/mailman/listinfo/cisco-voip" target="_blank">https://puck.nether.net/mailman/listinfo/cisco-voip</a><br>
<br></blockquote></div><br>