[asterisk-biz] Bypassing the PSAP for 911

[asterisk_HELP at IWISHI.NU]

On Fri, 24 Feb 2006 ejo1 at omni.sccvoip.com wrote:
>>  Why couldn't I put in a box either right next to, or directly in front of 
>> their PSAP connection that receives and reports the 911 information through 
>> the Internet from my Asterisk box when someone dials 911?
>
> #1) Liability for a claim that a 911 call didn't go through.
> If you're the manager for a 911 center, do you want to be the one who OK'd 
> the change to the network?
>
> #2) What's the benefit to the city/county/911 center? Who pays for it?
> What protections from attack do you provide?  Can you choke a large volume of 
> calls? (Choke = throttle down call rates = busy some callers)
>
>> I can't help but think that this would be a trivial piece of programming to 
>> come up with.  Need to add database records for the customer address on the 
>> Asterisk box, and some kind of dial plan that reported the customer 
>> information to the remote end of the 911 system  when someone dials.  PSAP 
>> T1s are just T1s, I'm guessing it would be fairly simple to format the 
>> information coming from the remote 911 box to look like a regular PSAP T1 
>> as it goes into the Communication Center box.
>
> The voice communications lines do not deliver the location data. Those are 
> additional circuits back to a database provider. Often a 56K or 64K DDS line 
> (a pair of them for redundancy)
>
> Google provided this link for a picture of how this works.
> http://www.redskytech.com/e911_Center/how_works/
>
> Personally, I'd like to talk to some SS7 experts who understand the E2 or V2 
> (as modified for VoIP) links, about what would be required to build a MPC 
> (mobile positioning center).  I understand this is how the Cellular guys send 
> their location updates in realtime.
>
> Cellular caller dials 911, cell site sector is used to find a trunk to a 
> local PSAP. Psuedo ANI is sent to the PSAP with the call. PSAP system knows 
> from the Psuedo ANI which MPC to query for a location. As soon as call is 
> answered, PSAP 'rebids' the database and has the location. PSAP can 'rebid' 
> the MPC any time during the call (In most cases) to get location updates. 
> (Following a moving 911 caller for example)
>
>
> Something for us all to keep in mind, The PSAP operators are all feeling 
> money pains. The network is getting more expensive to operate, taxes are 
> being cut throughout the U.S.A.  Fewer POTS lines are being installed. More 
> operators of 'communications services' are comming online all the time. 
> Someone's gotta buy those ports into their phone switches. Are you paying 
> into the 911 network to the people who answer the calls?
> Most states charge a fee to telephone end users to pay for the network. Most 
> VoIP or Cellular operators are not paying into the state funds to pay for 
> services. There are serious funding issues for 911 these days. The solution 
> being worked on is per number taxes at the federal level, but that creates 
> new problems. The voicemail, pageing, answering service providers, they don't 
> think this is fair. What about the large business with 100 lines, many they 
> only need a single DID number? Would they keep all their lines if costs 
> changed.  What about the VoIP provider who buys 1000 blocks of numbers from 
> CLEC's but haven't assigned those numbers to customers? Should they be taxed?
>
> OK, and now my point. How can we get to the i3 version of the 911 center of 
> the future with no money to pay for it?
>
> MESSAGE TO THE FCC and CONGRESS?   Little help here, PLEASE!
>