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Joined: Oct 2006
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I have a 9100 that covers three separate buildings that are all next door to each other. They each have their own house number address. There is a block of 100 DID numbers delivered via a PRI circuit from the local telco (Windstream) to the 9100.

I’ve learned a lot while getting the proper address to show up at the 911 center, and follow Baum’s Act. I’d like to check with you guys that I’m on the right track here, as far as 9100 programming.

SV9100
14-01-38 Outgoing CLI Selection - Use Program 21-18.
21-18 IP Trunk (H.323) Calling Party Number Setup for Extensions

In 21-18, each extension has the 10 digit phone number of the office it is located in.
This number and the address of the office it is located in, will be sent to the telco, per their request, to be forwarded to the 911 database authority for the area PSAP, as I understand it.

My question is: Am I correct that 21-18 is the only program I need to fill out? And send those numbers and addresses to the telco/911 folks?

Thanks.
Jim

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What trunks are you using...and what processor?

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CP-20 and the trunks via the PRI.

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Ok, so the E911 is a sip only thing for the NEC CP20 (only). If you are on a PRI the carrier is where you need to start this. You can send CID...now if the carrier can send the proper address (in their equipment) then you are gtg. I am fairly certain Comcast can do this. Otherwise you have to get a SIP trunk (1 or 2 should do) and route your 911 calls to them.

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Does the PRI satisfy the sip requirements? The trunks show up as PRI in trunk setup. And 21-18 affects the outgoing CID that shows up at the called party's phone.

I agree that the carrier is who we should be talking to. They tell me we need a PSALI agreement (Public Safety Automatic Location Identifier). As I understand it, this will tell the carrier the address of the DID numbers as specified in 21-18. I don't know yet how much addressing/location info they will accept. Address, floor or building, office number, etc.?

Stay tuned. Thanks.
Jim

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Fairly certain PRI carrier software needs to send that data. The ONLY thing we send on PRI is CID unless something has changed on NI2? All those info fields they added were for SIP trunks and IF the carrier supported the E911 protocols.

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I thought Baums law was to get the location i.e. room number
Which would have to be done with a E911 Sip Trunk from what I understand


Lots of programming on both ends, the NEC and the provider

A lot of the hosted companies are throwing this into the mix and people don’t think twice. They just go with the hosted product if they have any money.

Seems like a ridiculous law to me. Everyone has a cell phone the NEC can tell you where the call was made.

Obviously, it would apply in certain circumstances

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Originally Posted by teldata1
I thought Baums law was to get the location i.e. room number
Which would have to be done with a E911 Sip Trunk from what I understand


Lots of programming on both ends, the NEC and the provider

A lot of the hosted companies are throwing this into the mix and people don’t think twice. They just go with the hosted product if they have any money.

Seems like a ridiculous law to me. Everyone has a cell phone the NEC can tell you where the call was made.

Obviously, it would apply in certain circumstances

RAY BAUM’s Act requires that all 911 calls must have a “dispatchable location” which means having information for emergency responders to find the exact location of a person who has dialed 911. In a standard office with a reception, I don't think there is much that needs to be done, expecially if the PBX notifies the reception about who dialed 911. In larger locations or some specific circumstances (as you mentioned) it would make sense to use multiple e911 numbers for specific location information.

We had 2 offices that shared the same PRI. We worked with the carrier to send 2 different e911 numbers with the correct address depending on which building the extensions were located.

Our company is doing nurse care facilites with phones in every rooms. With a hosted system we are now able to provide a DID to every internal extensions, and register every phone number with with a room number along with the physical address for 911. The nurses also get notified if someone dials 911, just like most on premisse PBXs already do as well.

The main issue with cell phones is that there is no location information and I don't beleive that they are routed to a local 911 dispatch center. In a panic, people may not be able to rememeber the address of their current address. Also if the call gets cut off before they can tell the address to the dispatcher.

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Been a while, off and on for this project. Time for an update.

Telco has a charge for the PSALI agreement. And since there are 3 buildings, the charge is times 3. We are leaning towards getting three SIP trunks and program the 9100 to send 911 calls out the SIP trunk for that building, with the proper address. Eventually adding more sip trunks and moving all the DID's.

Sound reasonable?

Thank you.
Jim


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