H.450 support
Alex Chatilov
achatilov at email.msn.com
Thu Sep 16 01:56:33 EDT 1999
Hello,
I have a question about how to detect does remote endpoint supports H.450
(without using a timer)? Is it clear that receiving endpoint has to replay
with a STATUS message in case when it receive an H.450 related FACILITY
message?
Assume that we have:
Originator side sent:
--------------------
FACILITY
FacilityIE
(length=0)
...
User-UserIE
H323-UserInformation
h323-UU-PDU
h323-message-body = empty
...
h4501SupplementaryService
(H.450.x request)
...
...
...
Remote side received FACILITY, here is no
support for H.450, so we will respond with
STATUS message where the causeIE =
100 (invalid IE contents), or
99 (Information element/parameter non-existent
or not implemented), or
97 (Message type non-existent or not implemented)
STATUS
...
CauseIE
...
cause = XX
diagnostics = YY
...
Am I right?
Thank you,
Alex
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