<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: Verdana; font-size: 10pt; color: #000000'>There was some talk about this a while back and my research (mainly from the archives and contacting individuals) shows two things:<br><ul><li>it depends on the protocol you are using (SCCP, MGCP, H323), and<br></li><li>it depends on the protocol/functions of the alarms</li></ul>If you are using simple alarms, that simply call home with no active data, then SCCP should be fine. <br><br>If you are using intelligent alarms, those that supply contact info for example, then I believe you have to go with H323.<br><br>If you do some searching on the archives, you'll get some threads you can look through.<br><br><br><br>Lelio Fulgenzi, B.A.<br>Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1<br>(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)<br>^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^<br>"Bad grammar makes me [sic]" - Tshirt<br><br><br>----- Original Message -----<br>From: "Tim Reimers" <treimers@ashevillenc.gov><br>To: cisco-voip@puck.nether.net<br>Sent: Wednesday, November 4, 2009 2:51:54 PM GMT -05:00 US/Canada Eastern<br>Subject: [cisco-voip] Cisco VOIP and fire alarm phone lines<br><br>
<div><span class="419584519-04112009"><font size="2" face="Arial">Does anyone know if
Cisco has any recommendations they officially make on supporting analog
telephony devices like fire alarm panels?</font></span></div>
<div><span class="419584519-04112009"><font size="2" face="Arial"></font></span> </div>
<div><span class="419584519-04112009"><font size="2" face="Arial">We use ATAs for
supplying dialtone to fire alarm dialers, and we're getting issues with
some panels getting "comm trouble" issues, and data not getting to the
monitoring company correctly.</font></span></div>
<div><span class="419584519-04112009"><font size="2" face="Arial"></font></span> </div>
<div><span class="419584519-04112009"><font size="2" face="Arial">The security vendors
and the OEM manufacturers are saying "we don't recommend VOIP for alarm
lines"</font></span></div>
<div><span class="419584519-04112009"><font size="2" face="Arial"></font></span> </div>
<div><span class="419584519-04112009"><font size="2" face="Arial">Our management is
saying that surely Cisco supports this, and with the correct configuration, they
can make this happen.</font></span></div>
<div><span class="419584519-04112009"><font size="2" face="Arial"></font></span> </div>
<div><span class="419584519-04112009"><font size="2" face="Arial">I'm looking for some
official Cisco guidance (links to design guide statements, etc)
</font></span></div>
<div><span class="419584519-04112009"><font size="2" face="Arial">that might break the
deadlock, and either allow me to prove to the vendors and OEMs that VOIP is
indeed a stable technology</font></span></div>
<div><span class="419584519-04112009"><font size="2" face="Arial">or, allow Cisco the
graceful way of saying "it's best not to do that"</font></span></div>
<div><span class="419584519-04112009"><font size="2" face="Arial"></font></span> </div>
<div><span class="419584519-04112009"><font size="2" face="Arial">Anyone got anything
to offer?</font></span></div>
<div><span class="419584519-04112009"><font size="2" face="Arial"></font></span> </div>
<div><span class="419584519-04112009"><font size="2" face="Arial">I'd imagine that
there's a fair number of folks who've just decided not to use VOIP for this
purpose- </font></span></div>
<div><span class="419584519-04112009"><font size="2" face="Arial">That's just not the
decision here though..and I'm not the policymaker on that
level.</font></span></div>
<div> </div>
<div align="left"><font size="2" face="Arial">Tim</font><font size="2" face="Arial"></font></div><br>_______________________________________________
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