Subject: Q.931 and QSIG support in IUA

From: "Ramirez, Luis" <[email-masked]>
Date: Wed, 20 Feb 2008 16:05:56 -0300

Hello,
 
I have a question regarding the implementation of IUA in a NGN network.
When I support IUA in a MGW/SG, is it necessary to support either Q.931
or QSIG? Or is it enough supporting Q.921? in order to have a clear
connection within an ISDN environment including ISDN-BRI users or PBX's
connected via ISDN PRI.
Thinking in a IUA deployment:
What happen if the MGW and the MGC (Media GW Controler) don't support
QSIG?
What happen if the MGW and MGC don't support Q.931?
What if the MGC and MGW only support IUA/Q.921 with SCTP?

Do you have any special documentation regarding that?
 
Thanks a lot and regards,

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