[77958] in North American Network Operators' Group

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Re: Vonage complains about VoIP-blocking

daemon@ATHENA.MIT.EDU (John Fraizer)
Tue Feb 15 14:34:20 2005

Date: Tue, 15 Feb 2005 14:30:47 -0500
From: John Fraizer <nanog@enterzone.net>
To: Samantha Fetter <sama@snowplow.org>
Cc: nanog@merit.edu
In-Reply-To: <Pine.BSO.4.61.0502151400370.32642@ssh.snowplow.org>
Errors-To: owner-nanog-outgoing@merit.edu




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.

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".

John

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