[Standards-JIG] defering roster subscription

[Mridul]

Hi,

  3920 section 6.2 states that :
"
When a client receives a subscription request from another entity, it 
MUST either approve the request by sending a presence stanza of type 
"subscribed" or refuse the request by sending a presence stanza of type 
"unsubscribed".
"

If the client so requires, is there some way to defer this subscription 
request for later ? The server will re-deliver the subscription at a 
later point of time if it is deferred.
As things stand - a user can find out the available/unavailable status 
of another user simply by sending a subscription request and seeing if 
he gets a response within reasonable time cos of the MUST respond clause.

Regards,
Mridul