We discussed this on the CMPWG call today (Feb-16-2012) and agreed that if a session is closed by the client, or closed by the server, that the session is still closed.

In the case where a CloseSession call is issued, but the sesssion was already closed, then the Service Result returned will be: Bad_SessionIdInvalid since that's the ONLY service-result defined for this call.

Currently the UACTT allows for Bad_SessionIdInvalid or Bad_SessionClosed which is incorrect. The script will be modified to allow Bad_SessionIdInvalid only.

Thank you for your support.

But I'm sorry, I could not understand your answer.

I want to confirm whether the UA server should return the error BadSessionNotActivated if UA client calls CloseSession without calling ActivateSession.
Or should UA server return OK in this case?

The following case is normal case.
1.UA client calls CreateSession
2.UA client calls ActivateSession
3.UA client calls CloseSession --> UA server returns OK.

The following case is my question's case.
1.UA client calls CreateSession
2.UA client calls CloseSession (without calling ActivateSession)
--> In this case which of the error BadSessionNotActivated or OK should UA server return?

The CloseSession service can return one of two codes only:

• Good
• Bad_SessionIdInvalid

In this case, you should return Bad_SessionIdInvalid.

I could understand your answer.
But I guess that there are no services that are defined to return Bad_SessionNotActivated in Part 4. (not only ColseSession)
Which services return Bad_SessionNotActivated?