CUCM - Nortel CS1000 SIP GW Integration Modify INVITE header

cdnadmin · ‎01-24-2014

This document was generated from CDN thread

Created by: UC Support on 28-09-2012 02:01:27 PM
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Hi Team,
I'm working in a CUCM-Nortel Integration, incoming calls from Nortel to CUCM
fails due the received INVITE from Nortel is in this format:
===========
INVITE sip:333666;phone-context=udp@test.com;user=phone SIP/2.0

.
To: <sip:333666;phone-context=udp@test.com;user=phone>
============
CUCM rejects the call and in the trace I see the reason:
|Digit Analysis: Host Address=test.com DOES NOT MATCH any address for this
cluster.
|Digit Analysis: Host Address=test.com DOES NOT MATCH top level org domain.

It makes sense since the CUCM is not named test.com nor the top level org
domain. I can fixed using the test.com in the CUCM>Enterprise Parameters>
but is not really the solution I would prefer to use.
I’m wondering if I can use the Normalization Script to grab the phone-context=
tag from the To: header and rename it from
phone-context=udp@test.com;
to
phone-context=udp@x.x.x.x;
where x.x.x.x is the ip address of the CUCM.

I read the doc and I think I can use the following function to grab the tag

M = {}
function M.inbound_INVITE(msg)
    local to =
msg:getHeaderUriParameter("To", "phone-context")
end
return M

But how can be modified?

Any help on this is really appreciated.

Regards
Carlito

pfbartholomai1 · ‎09-24-2015

Trying to do the exact same thing, any chance you got this to work?

Regards

Paul