[cisco-voip] Transmitting ALI data from Emergency Responder?

Tue May 15 12:17:28 EDT 2007

There are a couple of USA-specific psali providers here:
http://nena.org/companyid/cid.asp

Candace

On 5/15/07, Ed Leatherman <ealeatherman at gmail.com> wrote:
>
> We tried that option, at least in our area verizon wouldn't do it, they
> said we had to get the PS-ALI service.
>
> On 5/15/07, Lelio Fulgenzi < lelio at uoguelph.ca> wrote:
> >
> >  Something you can consider as an alternative is asking your PSTN
> > provider to update the ELIN records for you. For example, if you don't need
> > dynamic ELINs and callback, and you have a short number of them, you can add
> > LDNs on your PRI/megalink service and have the records updated for those
> > numbers only.
> >
> > Of course, all the stars have to align, your provider has to offer this
> > service and you have to be using PRIs, etc, but it might be an option for
> > you.
> >
> >
> >
> >
> > --------------------------------------------------------------------------------
> > Lelio Fulgenzi, B.A.
> > Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
> > (519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
> > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> > ...there's no such thing as a bad timbit...
> >
> >
> >  ----- Original Message -----
> > *From:* Ed Leatherman <ealeatherman at gmail.com>
> > *To:* Candace Holman <holman at post.harvard.edu>
> > *Cc:* cisco-voip at puck.nether.net
> > *Sent:* Tuesday, May 15, 2007 8:11 AM
> > *Subject:* Re: [cisco-voip] Transmitting ALI data from Emergency
> > Responder?
> >
> >
> > Anyone have info on a reputable company that handles PS-ALI service? If
> > Verizon is the only ALI uploader in our state, are we stuck with them?
> >
> > I have a regional campus that needs maybe 15 ELINs, and Verizon will
> > only sell a minimum of 80 records, which for the size and budget of the
> > campus is something they are resisting paying for. We can't add them to our
> > own PS-ALI contract as they are on a different 911 system.
> >
> > On 5/14/07, Candace Holman <holman at post.harvard.edu> wrote:
> > >
> > > It's a bit off topic for this list but may be the only place where
> > > hands-on VoIP/E911 projects might be discussed, so I'd like to hear what
> > > others say too.
> > >
> > > There are whole companies devoted to this task and you are right, it
> > > is a major task and can be a hassle.  It's going to depend on the
> > > state-supported E911 infrastructure you deal with, so look up each state you
> > > need to do this for.  A "selective router" in the e911 infrastructure routes
> > > calls to the proper PSAP and each PSAP has a PS/ALI database.  For example,
> > > in Massachusetts there are 2 selective routers and 278 PSAPs.  The MA PSAPs
> > > have a deal with Verizon to be the only PS/ALI uploader so we had to do our
> > > data uploads through Verizon.  We had to use Kermit over a modem, but I
> > > believe they are updating this process.  You will need to press your service
> > > provider for information, but you have to know the right questions to ask.
> > >
> > > We only had to do two PSAPs. Since each state's E911 is run
> > > independently, you're going to have to find out what needs to be done for
> > > your case/s.  Within CER you generate the upload files, and may need to
> > > tweak them for the PS/ALI formatting (hopefully not too much). Hint -
> > > generate one of each NENA format and you'll be ready when they tell you you
> > > sent it in the wrong format.
> > >
> > > At some point you will need to deal with each PSAP to do testing, so
> > > get prepared and know which ones you'll need to contact.  As a professional
> > > courtesy, you don't want to dial 911 for testing without calling ahead
> > > first.
> > >
> > > Here's a Vz link that I think someone on this list posted recently.
> > > It shows what you should be looking for from your provider, and lets
> > > you start building a list of questions to ask:
> > > http://www22.verizon.com/wholesale/local/E911/1,21070,,00.html
> > >
> > > Also check out the NENA website and when you think you need a break
> > > from it all lookup the Next Gen 911 (ECRIT) project being defined in the
> > > IETF and googlable in combination with Henning Schulzrinne's name.  I would
> > > be surprised if Cisco were not all over this at some point in the next year
> > > or two.
> > >
> > > Candace
> > >
> > > From: "Dark Fiber" <d4rkf1ber at gmail.com>
> > > To:  cisco-voip at puck.nether.net
> > > Date: Mon, 14 May 2007 15:30:53 -0500
> > >
> > > I am curious to find out what others have done in regards to
> > > leveraging emergency responder and more specifically working through
> > > the process for transmitting your ALI info.
> > >
> > > Personally I have not had a lot of luck in determing the process from
> > > my service provider.
> > >
> > > Like many who have CallManager we have PRI's coming into a main
> > > office, we have satellite offices in many different cities with
> > > different PSAP's and such.  The users have phone numbers tied to a DID
> > >
> > > range tied to the PRI's and well 911 is an issue.
> > >
> > > We plan to leverage ER to identify phones in those offices and tie
> > > them to an ELIN associated with the address of that office.  Nothing
> > > too detailed or granular.
> > >
> > > The primary issue at this point is getting info to the service
> > > provider I guess.  I don't think we are suppose to deal with
> > > individual PSAP's.  My understanding is we are suppose to send info to
> > > the service provider of our PRI's, who is suppose to send the info or
> > > pass it on to PSAPs I guess.
> > >
> > > Just looking to hear what others have done regarding this process, the
> > > trials and tribulations if you will of figuring out this aspect of the
> > > whole thing, it does seem to be the most important component of
> > > rolling out ER.
> > >
> > > later
> > >
> > >
> > >
> > >
> > > _______________________________________________
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> > > cisco-voip at puck.nether.net
> > > https://puck.nether.net/mailman/listinfo/cisco-voip
> > >
> > >
> >
> >
> > --
> > Ed Leatherman
> > Senior Voice Engineer
> > West Virginia University
> > Telecommunications and Network Operations
> >
> > ------------------------------
> >
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> > cisco-voip at puck.nether.net
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> >
> >
>
>
> --
> Ed Leatherman
> Senior Voice Engineer
> West Virginia University
> Telecommunications and Network Operations
>
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