[SIPForum-discussion] SIP user data

[Nelson Dinis]

I done something like that in my final project of my graduation.

In the message INVITE i create a multipart body and in that body i have the 
SDP body and information in the format XML (application/xml). Is the format 
used in the mails.

You will have the problem that there aren't any softphone that can process 
that message so you will have to implement a way to make the multipart body 
and a way to read it.

In my project i create the message in the softphone, but i only need that 
information in the server so there i remove the multipart body keeping only 
the sdp body and send to the destination.


>From: "Jamie Chen" <jamiechen168 at gmail.com>
>To: discussion at sipforum.org
>Subject: [SIPForum-discussion] SIP user data
>Date: Wed, 4 Apr 2007 19:45:20 -0700
>
>Hi there,
>
>I am new to SIP and about to get into the deep understanding of SIP. But
>there is one thing I would like to check with this forum. I am wondering if
>SIP protocol allows me to add user data to the SIP message. One example is
>that when I receive SIP message, there will be some application specific
>data within SIP message. And I am able to add/update/delete the application
>specific data (user data) in this SIP and send it over for the SIP server.
>
>If you have some URLs explaining this, please feel free to point me to
>there.
>
>Many thanks


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