[SIPForum-discussion] what is the diffrence b/w a transaction, session , dialog

[VG]

Thanks Nitin for this valuable information.

May u please specify with an example like :

In a normal call flow

UAC                                  UAS
INVITE-------------------------->
Trying<--------------------------
180<---------------------------
200ok<-------------------------
ACK---------------------------->
BYE<----------------------------
200OK------------------------->


Which is transaction, dialog and session. It will be much more clear.

Thanks & Regards,
VG
On Sat, Jun 6, 2009 at 5:36 AM, nitin kapoor<nitinkapoorr at gmail.com> wrote:
>
> Hello Vikas,
>
> Below is the bit explanation of dialog, transaction & session.
>
> Dailog:
>
> Dialog is a peer-to-peer relationship between two user agents. It represents
> a context that facilitates the sequencing of messages between the user
> agents and proper routing of requests between both of them.
>
>
>
> Transaction:
>
> Transaction is a request sent by a client transaction (using the transport
> layer) to a server transaction, along with all responses to that request
> sent from the server transaction back to the client. Any task that a user
> agent client (UAC) accomplishes takes place using a series of transactions.
>
>
>
> Session:
>
> A session refers to all the connections that a single client might make to a
> server in the course of viewing any pages associated with a given
> application. Sessions are specific to both the individual user and the
> application. As a result, every user of an application has a separate
> session and has access to a separate set of session variables.
>
>
>
> Thanks,
>
> Nitin Kapoor
>
>
>
> 2009/6/5 VG <vikasraigupta at gmail.com>
>>
>> Hi,
>>
>> I m confused with these three things :
>> transaction
>> session
>> dialog
>>
>> Please specify me with an example.
>>
>> Thanks & Regards,
>> VG
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>