[cisco-voip] 911 mis dial issues

[Dennis Heim]

Well you need to adjust the T302 timer, aka the interdigit time-out.
Make sure that your 911 Route pattern does not have urgent priority
check. Make there another pattern that matches 911, so CCM has to wait
to the interdigit timeout before it can route out the call.  So you
would need another route pattern 911 + another digit or wildcard. 

 

Hope that helps.

 

Dennis Heim
Network Voice Engineer
Berbee
11711 N. Meridian Street, Suite 225
Carmel, IN  46032

317.569.4255 Office
317.569.4201 Fax
317.694.6070 Cell

dennis.heim at cdw.com
www.berbee.com <http://www.berbee.com/> 

 

From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Tim Reimers
Sent: Friday, April 18, 2008 11:02 AM
To: Scot Gossen; Leetun, Rob; cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] 911 mis dial issues

 

We had that same issue with people misdialing at my previous employer, a
school district.

 

What made the problem worse was that Central NC is 919 .... where
Raliegh and the Department of Public Instruction is -- so a LOT of calls
were going to "9-1-919...."

 

You can imagine the misdials that could happen with alternating 9s and
1s like that..

 

What we did was adjust the timing (someplace in CCM and on the H323
router) such that when  calling 911, it actually waited for more digits
for a longer time.. just to be sure someone wasn't dialing something
else instead.

 

Our vendor had initially set things up with digit timing such that the
minute you got that second "1" in there, BAM -- it called 911 _right_
that second, and didn't wait to see if anyone was going to dial anything
else.

 

I forget exactly what changed, but we adjusted something in both CCM and
in the H323 router, such that it waited a couple of seconds and if
someone dialed more digits, it made it not match.

 

Better than taking away 911 and making it some special set of digits
that someone might forget!! in an emergency!

 

________________________________

From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Scot Gossen
Sent: Thursday, April 17, 2008 4:59 PM
To: Leetun, Rob; cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] 911 mis dial issues

If I didn't misinterpret your question, I am assuming you use a 9 for an
outside line and your users are accidentally dialing 911??? When we have
clients that have a lot of users "fat fingering" 911, we will disable
the ability to dial 911 (without the lead 9) and only allow 9.911. 

Now if you are simply wanting to dial 95.yadda yadd yadda ("95" for the
outside line) from experience your users will become disgruntled having
to dial more digits.

-Go0se

"Leetun, Rob" <rleetun at bouldercounty.org> wrote: 

Hi,

Has anyone moved away from dialing just a '9' to dialing '95' or
something similar for an outbound line?  Management here does not want
to give up the '9' number.

Cheers!

Rob Leetun

Network Administrator

Boulder County IT

303-441-3866

rleetun at bouldercounty.org

"Live life, don't let life live you."

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