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Remote station E911 1

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bwilch

Technical User
May 5, 2003
627
US
Ok, I know a lot of you aren't in the US, but for those of you who are (or those of you who aren't but know the answer), I'm curious. If I have an IP Office at a primary site and a remote location using an IP phone is there a way to set it up so that when the remote IP phone dials 911, it routes to the correct emergency center and shows the correct address? I've not done a lot of digging I'll admit, but was just curious if anyone has done it with just the IP Office.

I know there are devices which intercept and have analog "911" ports, but without one of these devices, is it possible?

Thanks!
 
The device may have to be a FAX machine on its own line.

Pepperzgm at gmail dotte comm
 
I understand the idea of putting in a stand alone analog line, however, training the user that they _have_ to go to that phone to dial 911 can be tricky. Then you get into the issue of if a "guest" is in the building and tries to dial.

I'm wondering if there's a way to do this through the IPO without having to use an external device or a stand alone analog line.
 
I know that on my system (406V2 3.0.59 )I had to change the shortcode for 911 to have 911S1234567890 where the 1234567890 was my published local phone number. When I had just the telephone number in the shortcode as 911 I did a test call and the 911 operator informed me that they did not have an address associated with the telephone number I had called from which it turns out was not my published number but the main DID number on my PRI circuit.

So with that being said I would assume that you could create a personal shortcode for the remote IP phone to having the calling number show as something more pertinent (assuming that you are using a PRI circuit for outbound calling). I haven't tried it, but it seems like it should work.
 
You will need an analog line plugged in at the main office. Now, for the fun part. The analog line MUST have the billing address set to the remote site to route properly. Now for the phones at the remote site, just build a shortcode for 911 call to route out over the main sites analog line. With the correct address in place, the call shoudl then be directed to the correct 911 service center. This is how I have a customer over in Maryland set up.
 
That's a lot of failure points for an emergency number.

Pepperzgm at gmail dotte comm
 
The only failure point would be internet connection or the link between sites. You could change this point of failure by adding a second unit at the remote site with an analog line. My previous post is the Avaya recommended way to do E911 on the IP Office for remote sites.
 
Thank you all for the feedback, this has been a very interesting dive into an idea. Having been in the Fire/EMS industry before, I know the importance put on it. I think the "safest" way would be a remote gateway of some sort, weather it be another IP Office, or it be one of the PBX Extender type of devices with 911 capability and a local analog line.

Again, thank you all for your input, it's been very worthwhile.
 
You can get third party device, order cama lines from the ilec and then implement e911.


Another option using the outbound caller id change is to change the caller id outbound to a did number that you have on your PRI. Then have the phone company change the address info associated with that DID.


 
In order to use that option, which is a good one, you must make certain that your PRI provider understands what you intend to do. Normally, as chuyjones discovered, for 911 calls the teleco will ignore what you send them for outbound CLI and transmit the PRI billing number to the 911 center.

They can provision it to send the number you send them to 911, although you may have to talk to a few people before you get one who doesn't respond to your queries with "huh??"



Peter Sherwood
Morrack Consulting
Affordable World Class Off-site Backup!
 
Yes that's right, I've got one that will not change the info and only sends the billing info for that pri circuit.

External box with Cama is really the only sure way to go.

Does anyone know of any external box manufactures besides redsky that will work with IP Office
 
Question, is the remote site just IP phones or is there actually a IP Office there as well?
 
OK, then that will be a problem. Avaya is supposed to be coming up with a solution for this but as of now, there isnt one. Depending on the Telco Providers Switching technology, they may be able to accomodate your problem. There are 3rd party e911 systems you can put inline with the pri connecting that will send tagged information such as Address location, room number and extension the call oringinated from. I installed one in a school that kept having 911 calls but there were several buildings and police and medics had no idea where to go. It works great.
 
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