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: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Christopher Arnold Sent: Saturday, January 17, 2004 10:29 AM To: [EMAIL PROTECTED] 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 _______________________________________________ Asterisk-Dev mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-dev To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-dev _______________________________________________ Asterisk-Dev mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-dev To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-dev
