Subject: Outbound-05: Proxy STUN keepalive support flag (was: "RE: [Sip] Outbound Issues: slides 3 and 4")

From: "Christer Holmberg \(JO/LMF\)" <[email-masked]>
Date: Mon, 30 Oct 2006 18:02:56 +0100

Hi,

One of the issues we discussed earlier was to define a flag (URI
parameter, or something else) so that a proxy can indicate the support
of STUN keepalive. The proxy would insert this flag in the Path header,
and the Path header (or the Service-Route, if Jonathan's route-construct
draft is adopted) would then be returned to the user.

(The advantage of this is that the UA would not have to send OPTIONS, or
send let's-try-and-see STUN requests, to find out whether the edge proxy
supports it or not)

Regards,

Christer 

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