[SIPForum-discussion] Need clarification on Re-Invite ..

[Dasu B]

As per RFC03264,it must contain same SDP when sending re-Invite for Session
Refresher.

Thanks
B Dasu

On Tue, May 25, 2010 at 11:52 AM, Dasu B <dasu.eci at gmail.com> wrote:

> Yes Ravi..You are correct.UPDATE is also used for session refresher.If
> sending re-Invite,It can contains SDP but if sending Update method for
> session refresher (which is actually half of the Timer),it will not contain
> any SDP..This is as per RFC-4028.
>
> Thanks
> B Dasu
>
>   On Mon, May 24, 2010 at 11:28 PM, shiba shankar rout <
> rout.shibashankar at gmail.com> wrote:
>
>> No Ravi,
>>
>> Its not like that. UPDATE can also be used after session establishment.
>> After Session establishment UAC uses UPDATE as Session Refresher.
>>
>> Best Regards,
>> S S Rout
>>
>>
>>   On Wed, Apr 28, 2010 at 2:28 PM, Ravi Ranjan Sinha <
>> ravi.sinha at aricent.com> wrote:
>>
>>>   Difference between Update & Re-INVITE:
>>>
>>> Update could be used before the session is established (before final
>>> response & ACK), while Re-INVIE can be used only after session is
>>> established.
>>>
>>>
>>> *Regards,*
>>>
>>> *Ravi SINHA*
>>>
>>> *Société Aricent - Prestataire du Groupe SFR*
>>>
>>> DGRE / Direction Intégration Validation et Bout-en-Bout/CoreMobile
>>> T : 01 71 08 05 50
>>> *ravi-ranjan.sinha.prestataire at sfr.com*
>>>
>>> ravi.sinha at aricent.com
>>>
>>> 124 Boulevard Verdun - Prologue
>>> 92400 Courbevoie
>>> www.sfr.fr
>>>
>>>
>>>  ------------------------------
>>> *From:* discussion-bounces at sipforum.org [discussion-bounces at sipforum.org]
>>> On Behalf Of Murali Vuppandla [mvuppand at cisco.com]
>>>
>>> *Sent:* Monday, April 26, 2010 12:20 PM
>>> *To:* discussion at sipforum.org
>>> *Subject:* [SIPForum-discussion] Need clarification on Re-Invite ..
>>>
>>>    There are two SIP  subscribers A and B configured with G729 codec.
>>>
>>>
>>>
>>> A calls B. B is ringing. Now, I want to simulate a scenario wherein  A
>>> sends Re-Invite to B and B responds accordingly. What actually makes A send
>>> Re-invite to B before the session is established(do we need any extra
>>> configurations to simulate this scenario). Any real time scenarios in this
>>> regard is much helpful.
>>>
>>>
>>>
>>> And what’s the exact difference between UPDATE and RE-INVITE. I had read
>>> somewhere UPDATE is sent before the session is established whereas Re-Invite
>>> is sent after the session is established.
>>>
>>>
>>>
>>> Please clarify me on this.
>>>
>>>
>>>
>>> Regards,
>>>
>>> Murali.
>>>
>>>
>>>
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>>
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