[SIPForum-discussion] Need clarity over Dialog and session in sip.

[Jitendra Bastia]

Session and Dialog are used intermittently . and in one dialog we can have
multiple sessions(audio+video+date etc...) each distinguish by o= parameter
value( where the session id is increased).



On Mon, Jun 14, 2010 at 11:06 AM, Santosh Kumar <mail4santoshkb at yahoo.com>wrote:

> Hi all,
>
>   Can anyone kindly clarify what's session and dialog?
>   Did try refering rfc, but that defination was'nt able to digest.
>
>   Have read,
>    session is something to do with media, while dialog is to do with
> signaling.
>
>   Is it true both session and dialog gets established by INVITE and
> terminate with BYE?
>   , in that case what makes unique between each?
>
>  ,Also have read dialog is identified by callid , tag.
>    then how is session is identified?
>
>  Need your help or links for understanding,
>
>  Thanks
> Santosh
>
>
>
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>
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Thanks & Regards
                           Jitendra
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