On 2/21/12 11:22 AM, Kumar, Hemanth wrote:
> Hi Sai,
>
> You probably missed the point that INVITE is sent with Require 100rel.
> So 18x should contain SDP.
>
> My question is related expected behavior due misbehaving endpoint not
> sending SDP in 18x.
I already responded to this once.
Why are you *requiring* 100rel? (Rather than just supporting it.)
Its not common behavior. And its inviting problems when interacting with
something that doesn't expect this.
But still UE2 is misbehaving, and ought to be fixed.
Thanks,
Paul
> Regards
>
> Hemanth
>
> *From:*Sairam POKKUNURI [mailto:[email protected]]
> *Sent:* Monday, January 09, 2012 10:22 AM
> *To:* Kumar, Hemanth
> *Cc:* [email protected]; Paul Kyzivat
> *Subject:* Re: [Sip-implementors] Expected behavior for an INVITE sent
> without an offer
>
> Hi
>
> Invite without SDP is initiation of late media.
>
> In that case 18x response can have a complete offer or 200 OK can have
> an offer with ack containing answer.
>
> More details are mentioned in RFC 3264 and 3261
>
> Reg
>
> Sai
>
> On Wed, Jan 4, 2012 at 8:39 PM, Kumar, Hemanth <[email protected]
> <mailto:[email protected]>> wrote:
>
> Hi,
>
> What should be the behavior of UAC when an INVITE is sent without offer
> and Require 100rel and it receives non-reliable/reliable 18x response
> without SDP?
>
> Should the transaction be terminated by sending CANCEL?
>
> The same scenario was given as comment which has not been addressed in
> offer/answer draft-ietf-sipping-sip-offeranswer-03
>
> http://www.softarmor.com/sipping/process/wg-review/reviews/draft-ietf-sipping-sip-offeranswer-03-seth.txt
>
> " 3. Section 1.1 :
> Comment :- We should define the behavior for a UAC which sends out an
> INVITE without SDP and receives the first non-failure reliable response
> without an Offer, due to the UAS not conforming to the draft. As this
> being an open point can lead to multiple different implementations. Does
> the UAC clear the call or send a PRACK and wait for the offer in
> subsequent reliable responses."
>
>
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>
>
>
> --
> With Regards
> Sairam
>
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