V4 Facility Message

Paul E. Jones paulej at PACKETIZER.COM
Thu Dec 7 00:05:17 EST 2000


Paul,

That's yet another inconsistency. If you use Global CRV in Facility for
"multipleCalls" the only way you can
do is using "empty" but that is disallowed and hence Facility-UUIE must
be used. In which case we cannot include a "CallIdentifier". But
CallIdentifier is NOT OPTIONAL. Same with Status and Status Inquire as
well with "multipleCalls".

My take is that "empty" makes sense there but I know others don't like
"empty".  Otherwise, we need to come up with a "DUMMY Call Identifier"
for thsi purpose.

- Logan.


"Paul E. Jones" wrote:

> Folks, In H.225.0v4, there are several references to the Global Call
> Reference value.  It is described in H.323v4 how it is used for
> Facility to signal changes in the "multipleCalls" state and in IRQ to
> indicate a request for information for all calls.  However, what is
> the use for it in Status and Status Inquiry? Also, for the Facility
> message, how shall the CallIdentifier be coded, since the
> Facility-UUIE is now required? Paul
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