[asterisk-users] E911 Voip Trunking

Chris Nighswonger cnighswonger at foundations.edu
Fri Apr 19 14:29:29 CDT 2013

Section 6.5.2 (v4 interface) of NENA's v2 Interim Voip Architecture
Standard shows a ladder diagram of their SIP flow which seems to match
standard SIP. Maybe I'm oversimplifying it?


On Fri, Apr 19, 2013 at 2:51 PM, Terry Brummell <terry at brummell.net> wrote:

>  E911 does not follow the standard SIP RFC.  That would be a good reason
> that they couldn't/wouldn't do it.  Now that I say that I should qualify it
> and say "NG911 (or ESINet) does not follow SIP RFC"
> http://en.wikipedia.org/wiki/Next_Generation_9-1-1.  That is not saying
> your county is not using standard SIP for E911, it just wouldn't be
> considered NG911.
> ------------------------------
> *From:* Chris Nighswonger
> *Sent:* Fri 4/19/2013 11:41 AM
> *To:* Asterisk Users Mailing List - Non-Commercial Discussion
> *Subject:* [asterisk-users] E911 Voip Trunking
>   During the course of a conversation with an member of the IT group who
> handles the E911 center for our county, I learned that all of the county's
> E911 is voip based. This got me to wondering why we could not just
> configure up a SIP or some such trunk directly to the E911 center to handle
> our emergency traffic. The county seems interested in exploring the
> possibility.
> So I'm wondering if anyone else has attempted this.
> Kind Regards,
> Chris
> --
> _____________________________________________________________________
> -- Bandwidth and Colocation Provided by http://www.api-digital.com --
> New to Asterisk? Join us for a live introductory webinar every Thurs:
>                http://www.asterisk.org/hello
> asterisk-users mailing list
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.digium.com/pipermail/asterisk-users/attachments/20130419/58a4935c/attachment.htm>

More information about the asterisk-users mailing list