Re: [v6ops] Happy Eyeballs and SIP

Mind, altc has been rejected by RAI area. The official solution is to 
use ICE or ICE Lite.

On 07/03/2011 7:51 AM, mohamed.boucadair@orange-ftgroup.com wrote:
> Dear Olle,
>
> For the SIP case, if you don't need connectivity checks (e.g., closed
> networks, which is in France the majority of SIP traffic) you can
> just use the ALTC attribute defined in
> http://tools.ietf.org/html/draft-boucadair-mmusic-altc-01.
>
> In case connectivity checks are needed, a variant of the happy
> eyeballs for SIP (called Happy Eardrums) has been proposed in
> http://tools.ietf.org/html/draft-wing-dispatch-v6-migration-00 but
> still you need to be sure you IPv4 connectivity is working ;-).
>
> Cheers, Med
>
>
> -----Message d'origine----- De : v6ops-bounces@ietf.org
> [mailto:v6ops-bounces@ietf.org] De la part de Olle E. Johansson
> Envoyé : lundi 7 mars 2011 10:40 À : v6ops@ietf.org Objet : [v6ops]
> Happy Eyeballs and SIP
>
> Hi!
>
> Has anyone considered the issues covered in the happy-eyeballs draft
> for SIP?
>
> A 19 or 32 second time out when placing a call is not a good user
> experience... I think this applies to SIP over TCP, and possibly also
> needs to be handled for UDP. I don't see this handled in the draft
> for IPv6 transition in the Session Initiation Protocol (soon-to-be
> RFC 6157)
>
> Seems like the scope of the happy eyeballs draft is HTTP, so the
> question is if this should be expanded or if we need other drafts for
> other protocols.
>
> Regards, /Olle
>
> Ref: http://tools.ietf.org/html/draft-ietf-sipping-v6-transition-07
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