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Today's Topics:
1. Re: [Sip] What's the difference between session and
dialog in
SIP? (Shah Newaz)
2. Re: 185 ringing / 199 trying (Raj)
------------------------------------------------------------
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Message: 1
Date: Sat, 26 Apr 2008 14:44:07 +1100
From: Shah Newaz <newazlive.com>
Subject: Re: [SIPForum-discussion] [Sip] What's the
difference between
session and dialog in SIP?
To: Raj <rajasekhar.lgmail.com>, gaurav
katiyar
<gaurav_katiyaryahoo.com>
Cc: sipietf.org, discussionsipforum.org, ??????
<szj087gmail.com>,
bmwgietf.org, "Vijay K. Gurbani" <vkgalcatel-lucent.com>
Message-ID: <BAY107-W2239EAD9AB36AF00381A9AC4DC0phx.gbl>
Content-Type: text/plain; charset="windows-1252"
hi can u help to develop the SIp client software using
Visual C#.
thank u
Date: Fri, 25 Apr 2008 20:45:48 +0530From: rajasekhar.lgmail.comTo: gaurav_katiyaryahoo.comCC: discussionsipforum.org; szj087gmail.com; sipietf.org;
vkgalcatel-lucent.com; bmwgietf.orgSubject: Re:
[SIPForum-discussion] [Sip] What's the difference between
session and dialog in SIP?Do u mean, Dialog is at signaling
level, session is at media transport level.
On Fri, Apr 25, 2008 at 5:44 PM, gaurav katiyar
<gaurav_katiyaryahoo.com> wrote:
Sip "Session Initiation Protocol". It talks about
media session, i mean how to initiate, modify and terminate
a session and Dialog provides a sort of context (like
caller, callee, location, routing etc.) to modify this
session. So dialog is more related to route the sip message
to right node and body (SDP) handles media session if
present. Dialogs may have media sessions Or may not.
Take an example of B2BUA. It is a type of statefull proxy
having two dialog and one media session if doing media
routing.
Donald Lee <baolovebaogmail.com> wrote:
old good questions in sip, also add another
"transaction".
On Fri, Apr 25, 2008 at 8:18 AM, ??????? ? <szj087gmail.com> wrote:
Hi, VijayThanks very much for your timely answers.From this
specification, session is a combination of signaling
planeand media plane messages and processes that enable two
or moreparticipants to communicate. I think session is a
larger scope thandialog. In another word, one session can
contain more than one dialog.Is what I understand
right?Zongjun2008/4/24, Vijay K. Gurbani <vkgalcatel-lucent.com>:
> There is some work progressing in the BMWG WG to create
performance> metrics around SIP. One of the first tasks
in such an endeavor> is to define the notion of dialogs
and sessions. Please see> Section 3.1.1 of> https
://svn.resiprocate.org/rep/ietf-drafts/gurbani/bmwg-sip-benc
h-term/draft-ietf-bmwg-sip-term-00.txt> of the above
draft for some insight.>
> ???????????? wrote:>> > Hi, Lincoln>
>> > thanks for your instructions.> >>
> I know that dialog can exist without session since
SUBSCRIBE/REFER can> > create dialog and without any
media between communication peers.> >> > What I
want to know is the relationship of dialog and session
when> > they both exist in one communication activity.
Take a example, when> > there are 2 person
participating talks with voice, we say there is a> >
dialog and a session.> >> > But when one caller
invites another callee and gets five 200 final> >
responses from 5 UA every of which has its own session
description. We> > can say that there are 5 dialogs
between caller and the other 5> > callees, right? And
then what is the exact number of session in this> >
scenario? One session or five session? That is what I want
to know.> >> > Dialog is determined by dialogID
(call-id, from/to tag) and session id> > is determined
by session id given in the SDP message. My answer is>
> there are 5 dialog a!
nd one session now, right?> >>> - vijay>
--> Vijay K. Gurbani, Bell Laboratories,
Alcatel-Lucent> 2701 Lucent Lane, Rm. 9F-546, Lisle,
Illinois 60532 (USA)> Email: vkg{alcatel-lucent.com,bell-labs.com,acm.org}> WWW:
http://www.alcatel-
lucent.com/bell-labs>____________________________________
___________Sip mailing list https:/
/www.ietf.org/mailman/listinfo/sipThis list is for NEW
development of the core SIP ProtocolUse sip-implementorscs.columbia.edu for questions on current sipUse
sippingietf.org for new developments on the application of
sip-- BRDonald
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Gaurav Katiyar
Induslogic india pvt. ltd
B-34/1 sector 59 NOIDA
Phone:9818381368
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Message: 2
Date: Sat, 26 Apr 2008 10:02:15 +0530
From: Raj <rajasekhar.lgmail.com>
Subject: Re: [SIPForum-discussion] 185 ringing / 199 trying
To: "Hadriel Kaplan" <HKaplanacmepacket.com>
Cc: Karthik Ramiya <Karthik_Ramiyainfosys.com>,
"discussionsipforum.org" <discussionsipforum.org>
Message-ID:
<24bc18350804252132o3d88b11dhf39cc5793c7fcac0mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"
I am unable to find 185 or 199 response in 3261, is it
defined in any other
RFC.
On Fri, Apr 25, 2008 at 9:04 PM, Hadriel Kaplan
<HKaplanacmepacket.com>
wrote:
>
> A "reason phrase" is purely descriptive, and
you should NOT expect to
> receive or check for any particular string there.
Please don't expect it to
> be a fixed well-known string, such as the
"defaults" in rfc3261. For
> example lots of devices use different reason-phrases
for 4xx and 5xx error
> responses. Your code should just act on the number,
not the phrase. My 2
> cents anyway.
>
> -hadriel
>
>
> > -----Original Message-----
> > From: discussion-bouncessipforum.org
[mailto:discussion-
> > bouncessipforum.org] On Behalf Of Karthik Ramiya
> > Sent: Friday, April 25, 2008 6:21 AM
> > To: Malay Si; gaurav katiyar; mwilliam prusty;
discussionsipforum.org
> > Subject: Re: [SIPForum-discussion] 185 ringing /
199 trying
> >
> >
> > Hi Malaysi,
> >
> > I agree with you. But here it is clearly
defined like the reason
> > phase is 185 ringing / 199 trying, So you mean
like irrespective of the
> > reason phases, it wll jus look into the 1XX
response and treat it as
> 183??
> > In that case, it means that there wont be any
recognition for the reason
> > phase rite.
> >
> > Please clarify,
> >
> > Thanks and regards,
> > Karthik
> >
>
> _______________________________________________
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> TO UNSUBSCRIBE, or edit your delivery options, please
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>
--
-Raaz
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End of discussion Digest, Vol 33, Issue 66
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