Re: [rtcweb] Another consideration about signaling
Henry Sinnreich <henry.sinnreich@gmail.com> Fri, 16 September 2011 20:54 UTC
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Date: Fri, 16 Sep 2011 15:56:48 -0500
From: Henry Sinnreich <henry.sinnreich@gmail.com>
To: Iñaki Baz Castillo <ibc@aliax.net>, rtcweb@ietf.org
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Thread-Topic: [rtcweb] Another consideration about signaling
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Subject: Re: [rtcweb] Another consideration about signaling
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+1 These are indeed critical items to consider >if the signaling is implemented within HTTP or WebSocket (by using >any custom mechanism), it would be easy for the web server to know the active >sessions status in detail, and it could use such a information for rendering >it in the webpage (so others web visitors can see the status of my calls, for >example). >I just see advantages in *non* mandating a separate and specific >signaling protocol within rtcweb, even more taking into account >that this is supposed to be an added value for the web. This is: a >web-browser MUST NOT be a native SIP phone (IMHO). Though I would add the "other web visitors" may well be other app components that creative developers may assemble into rich apps. Thanks, Henry On 9/16/11 10:42 AM, "Iñaki Baz Castillo" <ibc@aliax.net> wrote: > Hi all, Let's imagine that rtcweb defines a specific signaling protocol > (i.e. SIP) so browsers MUST use it natively for signaling the media > streams. Of course this would require a SIP proxy/server in server side > (think about NAT) which IMHO seems a showstopper (how to deploy such a > SIP proxy in shared web hostings? a "mod_sip" for Apache? should I make > a XMPP<->SIP protocol gateway in order to intercommunicate web-browsers with > pure XMPP clients?) But there is another important drawback with this > assumption: A web site could be interested in drawing in the web the status > of the different audio/video streams between users connected to the web. > This could mean displaying in the web the active streams (audio/video), when a > session is on hold, when it's resumed again, when a new stream is added to a > multimedia session (i.e. offering video within an already established audio > session). If the signaling uses a separate channel (i.e. SIP) then there is > no way for the web server to know what happens during multimedia sessions (or > it would be really difficult to achieve). So multimedia sessions would be > completely separated from the web page itself. Is that what we want? In the > other side, if the signaling is implemented within HTTP or WebSocket (by using > any custom mechanism), it would be easy for the web server to know the active > sessions status in detail, and it could use such a information for rendering > it in the webpage (so others web visitors can see the status of my calls, for > example). I just see advantages in *non* mandating a separate and > specific signaling protocol within rtcweb, even more taking into account > that this is supposed to be an added value for the web. This is: a web-browser > MUST NOT be a native SIP phone (IMHO). I wouldn't like to see a competition > between Firefox 12 and Chrome 17 in next SIPit (Session Initiation Protocol > Interoperability Test). Best regards. -- Iñaki Baz > Castillo <ibc@aliax.net> _______________________________________________ rtcwe > b mailing list rtcweb@ietf.org https://www.ietf.org/mailman/listinfo/rtcweb
- Re: [rtcweb] Another consideration about signaling Kevin P. Fleming
- [rtcweb] Another consideration about signaling Iñaki Baz Castillo
- Re: [rtcweb] Another consideration about signaling Henry Sinnreich
- Re: [rtcweb] Another consideration about signaling Dzonatas Sol
- Re: [rtcweb] Another consideration about signaling José Luis Millán
- Re: [rtcweb] Another consideration about signaling Kevin P. Fleming
- Re: [rtcweb] Another consideration about signaling José Luis Millán
- Re: [rtcweb] Another consideration about signaling Kevin P. Fleming
- Re: [rtcweb] Another consideration about signaling Iñaki Baz Castillo
- Re: [rtcweb] Another consideration about signaling Kevin P. Fleming
- Re: [rtcweb] Another consideration about signaling Iñaki Baz Castillo
- Re: [rtcweb] Another consideration about signaling Ted Hardie
- Re: [rtcweb] Another consideration about signaling Iñaki Baz Castillo
- Re: [rtcweb] Another consideration about signaling Ted Hardie
- Re: [rtcweb] Another consideration about signaling Randell Jesup
- Re: [rtcweb] Another consideration about signaling Iñaki Baz Castillo
- Re: [rtcweb] Another consideration about signaling Saúl Ibarra Corretgé
- Re: [rtcweb] Another consideration about signaling Neil Stratford