[cisco-voip] CER and Route Patterns per ELIN

[Joe Martini]

You're not missing anything Adam.  If your calls are going out the same gateway, have the same call back number (ELIN), and are at the same physical location you can use just one route pattern.  The PSAP (911 location) uses the calling number (ELIN) to lookup your address.

Joe

On Jun 3, 2013, at 11:47 AM, "Pawlowski, Adam" <ajp26 at buffalo.edu> wrote:

I'm going over our CER installation in preparation of Bridge upgrade to 9.0(2) from 7.1(1a). This program looks to be pretty simplistic, though the amount of administrative data is a pain to set up initially. What I'm a bit confused on is the directions or indications that each ELIN needs a unique route pattern. In the 9.0 admin guide it no longer seems to specify trying to bother with transforming the called number since it will be presented by CER. In the 7 guide it does, but works fine without this anyways.

My question here is, though, if we've a pile of ELINs going to the same PSAP with the same access number from the same gateway/rl/etc, why bother creating route patterns for each thing? It seems like it just makes it more of a pain but doesn't actually accomplish anything. I've tested this, and it seems to work alright, as long as you fill in the ELIN correctly in CER with the proper digits to facilitate the return call. Am I missing something?

Thanks,

Adam P
SUNYAB

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