[cisco-voip] CER Configuration - Guides?

[Pawlowski, Adam]

Its really not so bad once you go through it once. The system is super super simplistic in what it does. The hard part is keeping your data up to date.

The guide makes some assumptions about your system and dialplan, but I found that I needed to lab it once and go through it before I started making changes, as a lot of things in the guide or elsewhere seem to make the assumption that you’re going to run everything configured as 911/912/913XXXXXXXXXX with a 911CSS and that, and you just have to keep your head on straight to set it up otherwise.

I’ve not found any need to have explicit XXXX.911 route patterns as digit manipulation works just fine in our case. Similarly, I have partitions for internal and external service translations, and have ELINs sitting out there, external trigger mapping back in there (for elevators, other non on-system devices which we route through CER), and in internal the 911, 9.911, and other security triggers.

We no longer use CER to maintain NENA records for PS-ALI, and edit it directly ourselves, but it worked reasonably okay when we did use it in the past.

That guide is pretty close to what I wrote internally on how we set it up. I should try my own blog post or video on it but I’m sure I’ve been beaten to the punch about a hundred times over by now.

Adam

From: cisco-voip <cisco-voip-bounces at puck.nether.net> On Behalf Of Johnson, Tim
Sent: Wednesday, February 19, 2020 1:34 PM
To: Matthew Loraditch <MLoraditch at heliontechnologies.com>; Matt Taber (mtaber) <mtaber at cisco.com>
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] CER Configuration - Guides?

I just worked my way through the official configuration guide the other day. It was a challenge, but I got it pieced together. The call flow diagram on this TAC document would have been super helpful to have!

From: cisco-voip <cisco-voip-bounces at puck.nether.net<mailto:cisco-voip-bounces at puck.nether.net>> On Behalf Of Matthew Loraditch
Sent: Wednesday, February 19, 2020 1:07 PM
To: Matt Taber (mtaber) <mtaber at cisco.com<mailto:mtaber at cisco.com>>
Cc: cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
Subject: Re: [cisco-voip] CER Configuration - Guides?

Thank you, that is super useful



Matthew Loraditch​

Sr. Network Engineer


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From: Matt Taber (mtaber) <mtaber at cisco.com<mailto:mtaber at cisco.com>>
Sent: Wednesday, February 19, 2020 1:01 PM
To: Matthew Loraditch <MLoraditch at heliontechnologies.com<mailto:MLoraditch at heliontechnologies.com>>
Cc: cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
Subject: Re: [cisco-voip] CER Configuration - Guides?

[EXTERNAL]

This guide is a bit more streamlined, with configuration screenshots taken from an example deployment:
https://www.cisco.com/c/en/us/support/docs/unified-communications/emergency-responder/211453-Cisco-Emergency-Responder-Integration-wi.html

-Matt

On Feb 19, 2020, at 12:53 PM, Matthew Loraditch <MLoraditch at heliontechnologies.com<mailto:MLoraditch at heliontechnologies.com>> wrote:

Any good guides or blogs that go through this in a more real world way than the documentation?

I haven’t found anything super helpful yet.


Matthew Loraditch​

Sr. Network Engineer


p: 443.541.1518<tel:443.541.1518>



w: www.heliontechnologies.com<http://www.heliontechnologies.com/>

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e: MLoraditch at heliontechnologies.com<mailto:MLoraditch at heliontechnologies.com>


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