Hi All,
I have a small query related to Precondition.
Can we have a Sip Invite message with *"Require: Precondition"* and without
any *sdp offer* .

Regards,
Pravin

On 4/3/06, [EMAIL PROTECTED] <
[EMAIL PROTECTED]> wrote:
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> Today's Topics:
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>   1. Re: Repeated Headers problem (Manikarnike Sridhar-Q16946)
>   2. Re: Multi homed Proxy (Kedar Karmarkar)
>   3. Re: Redirected messages and Route headers (Dale R. Worley)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 3 Apr 2006 20:30:47 +0800
> From: "Manikarnike Sridhar-Q16946" <[EMAIL PROTECTED]>
> Subject: Re: [Sip-implementors] Repeated Headers problem
> To: <[EMAIL PROTECTED]>, <[email protected]>
> Message-ID:
>        <[EMAIL PROTECTED]>
> Content-Type: text/plain;       charset="us-ascii"
>
> Per draft-ietf-sipping-torture-tests-09.txt, section 3.3.8, 400 Bad
> request needs to be sent.
>
> Regards,
> Sridhar
>
>
>
>
> > -----Original Message-----
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED] On Behalf
> > Of Manjunath Warad
> > Sent: Monday, April 03, 2006 5:35 PM
> > To: [email protected]
> > Subject: [Sip-implementors] Repeated Headers problem
> >
> >
> > Hi All,
> >       In case of repeated headers are present in the
> > request/response then what must be the behaviour of the
> > receiving entity(UA/Proxy)?
> >     For e.g.,
> >
> >         INVITE sip:[EMAIL PROTECTED] SIP/2.0
> >         Via: SIP/2.0/UDP pc33.atlanta.com;branch=z9hG4bKnashds8
> >         To: Bob <sip:[EMAIL PROTECTED]>
> >         From: Alice <sip:[EMAIL PROTECTED]>;tag=1234575684
> >         From: Alice <sip:[EMAIL PROTECTED]>;tag=1928301774
> >         Call-ID: a84b4c76e66710
> >         CSeq: 314159 INVITE
> >         Max-Forwards: 70
> >         Contact: <sip:[EMAIL PROTECTED]>
> >         Content-Type: application/pkcs7-mime;
> > smime-type=enveloped-data;
> >              name=smime.p7m
> >         Content-Disposition: attachment; filename=smime.p7m
> >            handling=required
> >
> >
> > Please let me know the behaviour along with some supported
> > statements in the RFC.
> >
> > Rgds,
> > Manju
> >
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>
> ------------------------------
>
> Message: 2
> Date: Mon, 3 Apr 2006 09:18:16 -0400
> From: "Kedar Karmarkar" <[EMAIL PROTECTED]>
> Subject: Re: [Sip-implementors] Multi homed Proxy
> To: "Niranjan Gopalakrishnan" <[EMAIL PROTECTED]>
> Cc: [email protected]
> Message-ID:
>        <[EMAIL PROTECTED]>
> Content-Type: text/plain; charset=ISO-8859-1
>
> Perhaps there is a separation of functionality like secure
> access/authentication provided in the external proxy which is not required
> for the internal proxy to make calls within the local domain which can be
> handled by seperating the functionality into two proxies, but also
> supports
> a "feature" which can run both proxies in a single instance?
>
> On 3/31/06, Niranjan Gopalakrishnan <[EMAIL PROTECTED]> wrote:
> >
> > Im working with an implementation of a Multi homed proxy - uses 2
> > interfaces, I presume one external and one internal.
> > On receiving a request on one interface, it forwards it to itself on the
> > destination interface, eventually adding itself twice in the
> > Record-Route header (with r2 parameter) before forwarding the request.
> > Response is processed similarly.
> >
> > Why is such a behaviour required? If this is to seperate the netowrk
> > topology (external, internal) the same can be achieved by an IP gateway.
> >
> > I am sure there is only one instance of the Proxy running on the host.
> >
> > This behaviour is not affecting our functionality. But I need to
> > understand the reason behind it.
> >
> > Any pointers appreciated.
> >
> > Thanks.
> > Niranjan Gopalakrishnan
> > Senior Engineer, Call Control, Veraz Networks.
> > [EMAIL PROTECTED]
> >
> > _______________________________________________
> > Sip-implementors mailing list
> > [email protected]
> > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
> >
>
>
> ------------------------------
>
> Message: 3
> Date: Mon, 03 Apr 2006 10:03:01 -0400
> From: "Dale R. Worley" <[EMAIL PROTECTED]>
> Subject: Re: [Sip-implementors] Redirected messages and Route headers
> To: Sip-Implementors <[email protected]>
> Message-ID: <[EMAIL PROTECTED]>
> Content-Type: text/plain
>
> On Mon, 2006-04-03 at 11:09 +0300, Fortinsky Michael wrote:
> > I have a question related to redirection and Route headers.
> > Assume the following scenario:
> > - UA sends out an INVITE containing Route headers
> > - UA receives a 3xx response with new contact information
> > - UA will now send a new INVITE to the new contact
> >
> > What Route headers should the new INVITE contain?
> > Should it include the same Route headers as in the original INVITE?
> > Should it just forget about the original Route headers?
>
> Presumably, the Route headers in the original INVITE describe how to get
> to its request-URI, so they are not relevant to the new INVITE.  The
> exception would be if the route headers in the original INVITE were
> added due to some general policy regarding how to route INVITEs, and if
> that policy applies to the new request-URI as well.
>
> Dale
>
> ---
> interop.pingtel.com -- the public SIP phone interoperability test server
>
>
>
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