RE: FCC To Require 911 for VoIP
-----Original Message----- From: owner-nanog@merit.edu [mailto:owner-nanog@merit.edu]On Behalf Of David Lesher Sent: Sunday, May 01, 2005 8:58 PM To: nanog list Subject: Re: FCC To Require 911 for VoIP
Speaking on Deep Background, the Press Secretary whispered:
When somebody in the office picks up a phone and dials
EXTERNAL-911 how
do the emergancy services know they are in one building rather than another office across town?
The PBX intercepts the call and uses special trunks to the PSAP; it also has to send data telling where the caller is.
There are no special trunks to the PSAP from a PBX. What Sean appears to be saying is he recommendeds getting a POTS line as a backup to a ds1 for 911, but it's a tad-bit more complicated than that and involves equipment types and tarriffs of CLECs vs. ILECs in router determination. I agree with him on that mostly, but there's more to think about. SMB's are not that sophisticated, are cost sensitive, and typically don't have the equipment to handle that as well, or, the expertise. YMMV. -M<
On Sun, May 01, 2005 at 10:56:57PM -0400, Hannigan, Martin wrote:
The PBX intercepts the call and uses special trunks to the PSAP; it also has to send data telling where the caller is.
There are no special trunks to the PSAP from a PBX.
Actually, Martin, there are. For E-911 campus-type service, at least. You apparently need to use either a PRI or a CAMA trunk to extend the calling PBX extension number to the PSAP, so it can ALI the appropriate location for the dispatcher. See http://www.911etc.com/pbx_solutions.html as well as http://www.xo.com/products/smallgrowing/voice/local/psali/ Cheers, -- jra -- Jay R. Ashworth jra@baylink.com Designer Baylink RFC 2100 Ashworth & Associates The Things I Think '87 e24 St Petersburg FL USA http://baylink.pitas.com +1 727 647 1274 If you can read this... thank a system administrator. Or two. --me
participants (2)
-
Hannigan, Martin -
Jay R. Ashworth