Re: Vonage complains about VoIP-blocking

[John Fraizer <nanog () enterzone net>]

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