Content-Length, if present, tells the length of the complete body of the
sip message. It doesn't include the sip headers. As someone mentioned,
Content-Length isn't always required - e.g. in UDP where there is other
framing that defines the end of the message. But it is needed in SDP.
It is the length of the SDP *only* if the SDP is the entire body of the
message. If the message contains a multi-part body then the
Content-Length is the size of the entire multi-part. In that case you
must separate the parts of the multipart based on the boundary.
Paul
Avasarala Ranjit-A20990 wrote:
> Content-length tells the length of the entire message : SIP + SDP
> Content-type tells the type of message body : e.g application/sdp or
> application/xml
> Unique boundry is the CRLF.
>
>
>
> Regards
> Ranjit
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of
> [EMAIL PROTECTED]
> Sent: Monday, March 24, 2008 3:49 PM
> To: [email protected]
> Subject: [Sip-implementors] doubt on MIME body [RFC-3204]
>
> Hello,
>
> I have doubt on the SIP messagee body, consider the message has SDP and
> ISUP payloads, iam constructing the sip packet using Structures in C, I
> referd the document RFC 3204, i have doubt on following fields...
>
> 1.content length : is it tells the lenght of SDP ?
> 2.content type :
> 3.unique boundary : how we will know the boundaries of SDP and ISUP or
> other payloads if present?
>
> could anyone clarify me,
>
> Thanks
> Ravi Kumar.
>
> ___________________________________
> IIT Kharagpur, http://www.iitkgp.ac.in
>
>
>
>
>
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