[cisco-voip] Interoperability - Tagging area code and prefix to outbound calls?

[ccieid1ot]

Translation-patterns, or prepending digits on route list?  You also
have to setup another PT and CSS for calls from the PBX to only used
that translation-patterns.

On Tue, Dec 8, 2009 at 2:18 PM, Madziarczyk, Jonathan
<JMad at cityofevanston.org> wrote:
> So I’ve added an additional PRI to our outbound route group.  This PRI does
> not have  the feature where all outbound calls are tagged as the main
> number.  On the CUCM side this is not an issue as all calls simply use the
> “External Phone Number Mask” field for the line settings.
>
>
>
> Our legacy PBXs also route through the CUCM to the gateways for PSTN calls
> as well.  They tend to ride the short bus.  Meaning they only send us the
> last 4 digits…which is great for on-net calls, not so good for PSTN calls.
>
>
>
> Our layout is:
>
> [Legacy PBX] <-> [Voice GW1] <-> [CUCM (6.14)] <-> [Voice GW2] <-> [PSTN]
>
>
>
> Is there a way I can get CUCM to tag on the area code/prefix before it heads
> out to the PSTN without messing with calls from CUCM to PSTN?
>
>
>
> Just thinking aloud, I’d like to just add it at Voice GW2 so we stay 4digit
> internally.  However, I’m not sure how that will mess with calls that CUCM
> is sending to PSTN, don’t wanna end up with (123)456-(123)456-7890 for a
> (123)456-7890 call when I’m trying to fix 3210 to look like
> (987)654-3210….if that makes sense.
>
>
>
> Ideas?  Has anyone dealt with this?
>
>
>
> I also need to look into the CER side of things (emergency responder/E911)
> for how to identify these numbers for the PSAP.  Which will obviously change
> based on how the number looks when the call goes out.
>
>
>
> JonM
>
>
>
>
>
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