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"Upon
initialization, the UA SHOULD subscribe to the dialog event
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package of the AOR and refresh the
subscription per RFC 3265. If the
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SUBSCRIBE request fails, loops back to
itself, or returns a 482 Loop
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Detected, then no Appearance Agent is
present and this feature is not
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active for this AOR. The UA MAY periodically retry the
subscription
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to see if conditions have changed.
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OPEN ISSUE: Do we need to specifically
call out the 482 response,
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or just say if the request fails or
loops, to give up?"
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Proposal: Simplify by saying If request fails or
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loops, give up.
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