[cisco-voip] SIP-Trunk with To-Header

[Nick Matthews]

Interesting details on the TO header.  The TCL script is a "if you
really want it to work, you can try this" kind of scenario.  This is
the case with almost all TCL scripts unless you go through the work
with a development team unfortunately.  If there is enough pressure,
Cisco may try to improve the script depending on how many people run
into the problem.

The SIP proxy server is a cool little beast and can do a lot of this
stuff, but at the end of the day your actual media elements (CUBE)
still need to support the signaling.


-nick

On Wed, Mar 17, 2010 at 11:53 AM, Erin Mikelson <ekmikelson at hotmail.com> wrote:
> I just worked with the CUBE BU, CUSP BU, Cisco Advanced Services, TAC, and
> my Channel SE team about this.
>
> Bottom line, CUBE and CUCM cannot route on the TO field.
>
> We ran into the same issue. Telco wanted to send a generic request-URI and
> have us route on the TO field. The Cisco Unified Sip Proxy server can do
> this. However, CUBE, CUCM, CVP etc. cannot. And yes, I did get my hands on a
> TCL script for CUBE, which worked on the inbound to replace the Request-URI
> with the TO field so everything else would work. BUT, we ran into other
> issues.
>
> For example, when routing to a busy phone or a non-registered phone, the SIP
> messages would die at CUBE. CUBE with the TCL script would not pass them
> back to the SIP Proxy or back to the Telco. Cisco said that the TCL script
> (which they provided) is not supported and that I needed to engage
> development to come up with a script that will take into consideration all
> the SIP Messages.
>
> Also, neither CUSP, CUBE, nor CUCM can replace the Request-URI with the
> value in the TO field.
>
> The telco did come through with a way that they can replace the Request-URI
> with the DNIS when routing calls in. Hooray for Verizon. :)
>
> In any case, I've learned a lot about SIP and the SIP Proxy server, which
> seems to be a cool little box.
>
> Erin
>
> ________________________________
> Hotmail: Trusted email with powerful SPAM protection. Sign up now.
> _______________________________________________
> cisco-voip mailing list
> cisco-voip at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
>
>