On TD26 - Fast TCS and M/S negotiation in H.323v4

Francois Audet audet at NORTELNETWORKS.COM
Thu Jun 1 08:33:34 EDT 2000


> 5.8.6.2/Q.931: When a SETUP or RELEASE message is received 
> which has one or
> more mandatory information elements with invalid content, a 
> RELEASE COMPLETE
> message with cause No. 100, “invalid information element 
> contents” shall be
> returned."

My understanding of this statement is that it is meant to cover
Q.931 elemements themselves, NOT UUIE content. As far as Q.931 is
concerned, the User-user information element can be coded in 
whatever way we want. It is an ISDN thing that was carried over
in H.225.0.

So, my take is that this section is completely irrelevant to the 
H.245 tunnelling (or in fact H.245 in general). Also, it talks about
a message (RELEASE) that is not even supported in H.225.0. 
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