[Asterisk-Dev] E911?

[Nathan Littlepage]

The majority of E911 trunking is CAS MF. I just went through the routine
of setting it up.

> -----Original Message-----
> From: asterisk-dev-admin at lists.digium.com 
> [mailto:asterisk-dev-admin at lists.digium.com] On Behalf Of 
> Alfred R. Nurnberger
> Sent: Saturday, January 17, 2004 2:50 PM
> To: asterisk-dev at lists.digium.com
> Subject: RE: [Asterisk-Dev] E911?
> 
> 
> 911 centers use special lines to connect to the public network either
> analog/T1 CAMA trunks or digital PRIs
> 
> I took a quick look at the new chan_zap.c from the CVS.
> The implementation seems to be of the analog CAMA trunk kind.
> CAMA trunks transmit the ANI (more or less Caller ID) as a 
> formatted MF tone
> string to the 911 equipment.
> This way * is capable of being connected directly to a CAMA 
> trunk into a 911
> center providing ANI information.
> Interesting application.
> 
> Alfred.
> 
> 
> -----Original Message-----
> From: asterisk-dev-admin at lists.digium.com
> [mailto:asterisk-dev-admin at lists.digium.com]On Behalf Of Christopher
> Arnold
> Sent: Saturday, January 17, 2004 10:29 AM
> To: asterisk-dev at lists.digium.com
> Subject: Re: [Asterisk-Dev] E911?
> 
> 
> 
> 
> On Sat, 17 Jan 2004, Olle E. Johansson wrote:
> 
> >  From the CVS log:
> >
> > Modified Files:
> > 	chan_zap.c
> > Log Message:
> >   Added functionality for E911 signalling
> >
> > What is E911 signalling?
> >
> It stands for "Ehanced 911" i belive it is the protocol for providing
> the phones location to emergency services.
> 
> 	/Chris
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