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