<div dir="ltr"><div>This is learning a lesson in phone system ownership, and administration, in the hardest way possible. </div><div><br></div>On the topic of 911 strategies, I too allow both 911 and 9911 to go out. I have even thought about allowing other PSTN access codes to go out as well. E.g., 8911. Though I have not yet done this. Anyone else?<div>
<br></div><div>On the topic of mitigating miss-dials, I leverage the CUCM CURRI API to play an announcement and then route the call. The announcement can be a blank audio file of any duration, giving you a way to control delay outside of T302. Additionally, a short announcement such as "Routing your call to emergency services" followed by a short 1 or 2 seconds of silence to allow the caller time to react and hangup if it is a miss-dial is also possible.</div>
<div><br></div><div>The CURRI API is implemented in CUCM as External Call Control Profiles and has a fail open safety mechanism. So, if for any reason CUCM cannot leverage the feature, the call simply routes.</div></div>
<div class="gmail_extra"><br><br><div class="gmail_quote">On Tue, Jan 14, 2014 at 2:28 AM, Heim, Dennis <span dir="ltr"><<a href="mailto:Dennis.Heim@wwt.com" target="_blank">Dennis.Heim@wwt.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I have always told customers that 911 must go out to the PSAP. If they only want to allow 9-9-1-1, then they need to place stickers on the phones. That usually causes them to do 911. In an attempt to avoid miss dials, I have inserted a delay by changing the 911 pattern to 911? And changing the inter-digit (T.302) timers to 5000-7500 ms.<br>
<br>
Dennis Heim | Solution Architect (Collaboration)<br>
World Wide Technology, Inc. | <a href="tel:314-212-1814" value="+13142121814">314-212-1814</a><br>
<br>
PS Engineering: Innovate & Ignite.<br>
<div class="im HOEnZb"><br>
<br>
-----Original Message-----<br>
From: cisco-voip [mailto:<a href="mailto:cisco-voip-bounces@puck.nether.net">cisco-voip-bounces@puck.nether.net</a>] On Behalf Of Coy Hile<br>
Sent: Monday, January 13, 2014 8:29 PM<br>
To: Adam Piasecki<br>
Cc: <a href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a><br>
Subject: Re: [cisco-voip] Hotel Murder Linked to E911 Programming<br>
<br>
<br>
</div><div class="HOEnZb"><div class="h5">On Jan 13, 2014, at 6:35 PM, Adam Piasecki <<a href="mailto:apiasecki@midatlanticbb.com">apiasecki@midatlanticbb.com</a>> wrote:<br>
<br>
> I install CUCM along with CER at Hotels and I've always just allowed 911 to go out. I get people dialing 911 by accident but it's better then someone not getting out.<br>
><br>
> Adam<br>
<br>
I've done the same thing on my personal lab setups (which double for voice at the house), and I've personally seen PD respond to one of my company's offices because someone dialed 9-1-1 rather than 9-011-<XXXX> for an international call.<br>
<br>
Like others have said, better to have an accidental call than to have a call not go out. I don't know any first responder personally who disagrees with that sentiment.<br>
<br>
-<br>
Coy Hile<br>
<a href="mailto:coy.hile@coyhile.com">coy.hile@coyhile.com</a><br>
<br>
<br>
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