CM 7.0.1 - 911 from Different Locations

[wallot]

Hey folks,

I have a system where at the main/primary location, 911 is handled in house by emergency response personnel. At a remote location actually located in another state, the site needs to send out 911 to the local 911 center on a local trunk.

We are not permitted to dial an ARS or AAR access code to dial 911 at this remote site. Since 911 is in the dial analysis as an extension and then in the UDP table for the main site, we cannot use the 9 for ARS and 11 in ARS analysis trick. Not to mention that 99 is the ARS access

Location 5 has a dial analysis table but the only option for entries is UDP. I cannot locate anything that suggests additional possible usage for the "change dial analysis location X".

Thanks!

 

[pmcginty]

Just a thought why don't you do the following:
In your dialplan set it up so 911 goes to ars

create an ars route for every site location. I have 4 sites so I would need ars routes

From there you can manipulate it to route out the local trunk and delete the digits to route to other numbers such as your emergency response personnel

 

[wallot]

Thanks!

However,

Wouldn't you have to first make 911 an ARS code in change features? Then, once you dial 911, you would only get a second dial tone as you would with 9 or 99?

I think your suggestion would require dialing 911 to access ARS then dial 911 to actual dial out?

 

[pmcginty]

Ah I see. My access code is 8 so it makes 911 calls very easy via the dial plan. You are using 9 as your access code right? So you would need to do a digit conversion with 11. So 9 opens up a line but the user dials 11. It then converts the number to 911 to go out your trunks.

 

[Wanebo]

Also, it makes sense to get it set up in ars for other reasons. One is that if it is in ars and labeled as Call Type emer you can use the ELIN field on the ip-network-map to define a system number that the CM will use as the caller ID information at the PSAP for any emergency call from a phone assigned an IP address in the defined ip subnet. If your sites use defined subnets this is a good way to be able to have users go from one site to another and use their regular DID but if they need to make an emergency call the correct address they are at appears since the PSAP DB dip will be for the defined ELIN number. The CM even has a feature that if you do use the ELINs then a call back to the ELIN (on a hangup or disconnection) will automatically need to be routed to the phone that made the initial call for a defined time period. This can be a life saver if the caller accidently hangs up.

 

[liquidvw]

put 911 in dialplan ana as:
911 3 udp
9911 4 udp - assuming 9 is for ARS.

Then put 911 in uniform dial plan as:
911 3 0 ars n
9911 4 4 911 ars n

Then you can use location based dialing to send our your local trunks
change ars ana location X

 

[joe2938]

I believe in the USA (not sure where you are from) it is against the law to deny 911 calls, just saying

 

[wallot]

Don't think there is any mention of denying 911 LOL The point is to find and avenue for sending 911 based on location.

Which I have found.

In dial parameters, enable Location-Based Call Type Analysis

Then do change calltype analysis location X and add 911 in as an extension

Next change calltype analysis location 5 and add in 911 as AAR

In AAR for location 5, add in 911 and point to the required route pattern

You have to have 911 in dial analysis as an extension oddly enough to get the 911 to route ARS but not needed to get it to dial as an extension.

See attached

 

[joe2938]

you said it was handled inhouse, I believe this is not allowed, I could be wrong but that what I was always told, what if someone walks away from their desk etc,,,

 

[wallot]

No worries joe2398, I'm not able to share everything concerning the site but believe me, their emergency services are much better than most and it is a very legal operation.

 

[Wanebo]

Different municipalities, states and/or countries have different regulations concerning the handling of 911 or emergency calls. Consult your areas rules to see what is applicable to your situation. The game can also vastly change depending on if the site is under federal jurisdiction.