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