AW: How to get the heel of RAS Message.

Horvath Ernst ernst.horvath at SIEMENS.AT
Wed May 9 04:31:18 EDT 2001


the user-data field is a container for a "real" Q.931 user-user information
element. Since H.225.0 re-defines the User-user IE for its own use, Q.931
user-user information, if present, must be put somewhere else, that's why
the user-data field was included in H323-UserInformation. I don't know if it
is ever used in practice.

Ernst Horvath
Siemens AG

-----Ursprüngliche Nachricht-----
Von: Paul Long [mailto:plong at IPDIALOG.COM]
Gesendet am: Dienstag, 08. Mai 2001 17:43
An: ITU-SG16 at mailbag.cps.INTEL.COM
Betreff: Re: How to get the heel of RAS Message.


1. I have no idea what the user-data component is used for.
2. I don't know what you mean by "get and set," but RAS does not use Q.931
or UUIEs in its encoding. It uses ASN.1 PER exclusively. I assume by your
other question that you are asking what the outer-most encoding is for RAS.
With call-signaling, it's Q.931; with RAS, it's ASN.1 PER--RAS uses ASN.1
PER throughout.

Paul Long
ipDialog, Inc.

-----Original Message-----
From: Mailing list for parties associated with ITU-T Study Group 16
[mailto:ITU-SG16 at mailbag.cps.INTEL.COM]On Behalf Of Delphi
Sent: Tuesday, May 08, 2001 1:53 AM
To: ITU-SG16 at mailbag.cps.INTEL.COM
Subject: How to get the heel of RAS Message.

Hi, all:

I have two problems concerning H.323 ASN.1.

H.323 ASN.1 states as follows:

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