Re: [rtcweb] SDP Offer/Answer draft-jennings-rtcweb-signaling: Glare handling

Eric Rescorla <ekr@rtfm.com> Tue, 18 October 2011 16:24 UTC

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From: Eric Rescorla <ekr@rtfm.com>
Date: Tue, 18 Oct 2011 09:23:48 -0700
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To: BeckW@telekom.de
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Subject: Re: [rtcweb] SDP Offer/Answer draft-jennings-rtcweb-signaling: Glare handling
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2011/10/18  <BeckW@telekom.de>;:
>
> Ekr wrote:
>> I'm not sure I agree with this. 2-5 seconds isn't really that long to
>> wait for the interval between the caller starting the call and the callee being alerted.
>
> I consider 2-5 s a quite horrible call setup time, and I can tell that customers really care about it. Of course it's acceptable if such a long setup delay only occurs occasionally.

Maybe I'm being unclear: it's not great, but there are plenty of settings
(e.g., online game setup) where it's not really that big a deal. My point isn't
that I wish to design a system with a lot of delay but merely that
(as I think Magnus's message implies) one shouldn't design a system
that only works if the signaling does not have even modest amounts
of delay.

-Ekr