<p>That's what I thought also, that reginfo would save the day. Then spent a long time tracking down structure of pua, etc, just to find out that the NOTIFY is not doing it unfortunately. Or maybe we missed something...</p>

<p>Anyway: my recommendation is to do both really, to make sure that you catch it even if the configuration has the SUBSCRIBE disabled or some strange S-CSCFs would reject the SUBSCRIBE.</p>

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