Vonage complains about VoIP-blocking
Hannigan, Martin
hannigan at verisign.com
Tue Feb 15 19:56:42 UTC 2005
> -----Original Message-----
> From: owner-nanog at merit.edu [mailto:owner-nanog at merit.edu]On Behalf Of
> John Fraizer
> Sent: Tuesday, February 15, 2005 2:31 PM
> To: Samantha Fetter
> Cc: nanog at merit.edu
> Subject: Re: Vonage complains about VoIP-blocking
>
>
>
>
>
> Samantha Fetter wrote:
> > Hi, just wanted to let you know that a friend recently got
> Vonage, and
> > they had to go through a special process to get 911
> properly associated
> > with her address so that it would work right. I'm guessing
> that means
> > they have "REAL 911 access"? I'm not familiar with that
> all, so pardon
> > my lack of technical terms :
> >
> > Cheers,
> > Samantha
>
> If they had to go through a "special" process, then no. That would
> indicate that Vonage still doesn't have PS/ALI, at least in
> your friends
> market.
>
> That "special" process is Vonage determining the "default"
> PSAP in your
> area and routing your 911 call to the 7-digit number for that PSAP.
> With PS/ALI, Vonage wouldn't be doing the routing. They
> would hand the
> call off to the 911 Selective Router which would THEN hand
> the call off
> to the appropriate PSAP based on a DIG to get your ALI information.
And with the current state of affairs, unless the head end can
determine proper call centers across boundaries (can't), it probably
never will.
>
> For those of you unfamiliar with how E911 works, and specifically,
> PS/ALI, take a look at:
> http://www.xo.com/products/smallgrowing/voice/local/psali/
>
> Or... Simply google for "PS/ALI".
That's a TDM product.
http://www.e911institute.org/Roundtable%20and%20Tours/June%2024,%202004/VoIP
%20E911%20Issues.pdf
Page 9 offers a better description of the current E911 issues.
It's a software problem. All Vonage does is map your 911 call
at the PSAP to your local EMS.
This is a 6/24 doc. It's slightly outdated.
-M<
>
> John
>
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