On 2012-07-11 22:27, Dave Cridland wrote:

OK, so, loosely:

1) If you know the remote disco (via caps, typically, or by a previous query), then you can follow that. Sending protocol to a remote endpoint that you *know* cannot support it is not going to make people happy. This will cover anyone in your roster, and indeed almost anyone you know to be online.

2) If you do not know the remote disco, then sending an "exploratory" <rtt/>, as in XEP-0085, seems reasonable, in the first message (only) in a conversation. This would most certainly include emergency services.

3) If, on the other hand, you're responding to a message - that is, your first message is a reply to another - then you'd only use <rtt/> if the contact does.

There is one edge case - where the contact does not advertise RTT, yet is sending it to you. In this case, you print out every XEP, roll them up, track down the implementor, and whack them over the head.

Dave,
Sounds good.
Can you convert your conclusion to modification proposals for chapter 5 and 6.2?

Gunnar

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