How wrong is it to modify the SDP body of a SIP message?

Posted by rusbi on Stack Overflow See other posts from Stack Overflow or by rusbi
Published on 2010-03-22T12:59:08Z Indexed on 2010/03/22 13:01 UTC
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sip

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sdp

A requirement for the SIP PBX I created for my company was to record all calls passing through it. I solved it by forcing all SIP message to pass through the PBX and to modify the SDP body so the stream passes through it and gets recorded. It works well.

I recently found out that this is not allowed.

Is there any other way to implement call recording and how "wrong" is this in regard to the protocol?

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