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Re: [rtcweb] SDP_PRANSWER followed by SDP_OFFER scenario in JSEP

Martin Thomson <martin.thomson@gmail.com> Thu, 10 May 2012 21:07 UTC

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References: <387F9047F55E8C42850AD6B3A7A03C6C0E23B102@inba-mail01.sonusnet.com> <6F428EFD2B8C2F49A2FB1317291A76C1136029362A@USNAVSXCHMBSA1.ndc.alcatel-lucent.com> <4FA13816.6050003@alvestrand.no> <CAD5OKxsOAeTRdCgj2g4BY8maeG1n9nzCv29g8kaFPVZ4tf8C5w@mail.gmail.com> <4FA15898.1040204@alvestrand.no> <7F2072F1E0DE894DA4B517B93C6A05852C44001329@ESESSCMS0356.eemea.ericsson.se> <CAD5OKxsbTSpMPg30P4DSN6UasCx6na43tpZ5yT2ct6SLMpd9xQ@mail.gmail.com> <7F2072F1E0DE894DA4B517B93C6A05852C4400132C@ESESSCMS0356.eemea.ericsson.se> <6F428EFD2B8C2F49A2FB1317291A76C1136047B753@USNAVSXCHMBSA1.ndc.alcatel-lucent.com> <7F2072F1E0DE894DA4B517B93C6A05852C4400132F@ESESSCMS0356.eemea.ericsson.se> <CAD5OKxuy8_Ras3X-8tcY1qaLRTVJ-z-JuXQaf0NKaRwN_dU18Q@mail.gmail.com> <7F2072F1E0DE894DA4B517B93C6A05852C442AC0DA@ESESSCMS0356.eemea.ericsson.se> <CAD5OKxuv7T6YrEXEeVECKbGtRg4feoRYTgvC57yqWXTBK43ypg@mail.gmail.com> <4FA2B447.7010504@jesup.org> <4FA2E264.4040207@jesup.org> <7F2072F1E0DE894DA4B517B93C6A05852C44001338@ESESSCMS0356.eemea.ericsson.se> <CAD5OKxuq14_DfSJuFEHq_ZEubbOYt7NFTcXWpLND8ggAr37QhA@mail.gmail.com> <7F2072F1E0DE894DA4B517B93C6A05852C44001339@ESESSCMS0356.eemea.ericsson.se> <CAD5OKxvFYy-9XAE5GG0n58xX2HKRX3o5qkTZ2o6rugakaM77Ew@mail.gmail.com> <7F2072F1E0DE894DA4B517B93C6A05852C4400133A@ESESSCMS0356.eemea.ericsson.se> <CAOJ7v-1Ue=q4MAh0csiDLvRFfMGaJ4vWrDxhir-S-OjSTsymaw@mail.gmail.com> <387F9047F55E8C42850AD6B3A7A03C6C160337F1@inba-mail01.sonusnet.com> <6E35F409-3B3F-4D92-91F2-451E0910CFDE@iii.ca> <CABkgnnVO5UyhHjiWVPsLYAoXSKPsfn6Fnb10hQr_6-kgq0FC3g@mail.gmail.com> <F0D1114C-0B6C-4AED-BDD3-4E3D6A219485@iii.ca>
Date: Thu, 10 May 2012 14:07:35 -0700
Message-ID: <CABkgnnWNLOb_xLUfOoZ5d7sKVsJDvjmNhmRqFcupO4S4p8Nrfw@mail.gmail.com>
From: Martin Thomson <martin.thomson@gmail.com>
To: Cullen Jennings <fluffy@iii.ca>
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Cc: Randell Jesup <randell-ietf@jesup.org>, "rtcweb@ietf.org" <rtcweb@ietf.org>
Subject: Re: [rtcweb] SDP_PRANSWER followed by SDP_OFFER scenario in JSEP
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On 10 May 2012 13:56, Cullen Jennings <fluffy@iii.ca> wrote:
> I was looking more for the actually sort of end user use case where this might happen.

I ring you.
Your mobile and home phone both ring.
You answer your mobile, your daughter answers the home phone.
I get to talk to both of you.

Of course, that's not such a great outcome.  I can hear both of you,
but you can't hear each other unless I have really bad echo
cancellation.

I tend to think of this as solving a really interesting signaling
problem that doesn't really have any practical application.  If you
want to talk to both people, then you should signal the creation of a
conference call.

--Martin

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