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Re: [Question #195843]: What is needed for RoHC with SIP?

To: rohc@xxxxxxxxxxxxxxxxxxx
From: Cédric Baudoin <question195843@xxxxxxxxxxxxxxxxxxxxx>
Date: Fri, 04 May 2012 16:45:45 -0000
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Question #195843 on rohc changed:
https://answers.launchpad.net/rohc/+question/195843

Cédric Baudoin proposed the following answer:
Hi,

You should have a look at SigComp instead. It has been designed to reduce the signaling overhead by using compression of the XML part of the SIP sig messages.
Using ROHC for that purpose implies that your 2 end points are able to communicate using ROHC packets, that is not straighforward (use of IP tunneling is not really useful if your objective is to reduce overhead) . In addition, the main part of the overhead is due to the rich text part (plain text XML) and not the header part.

Best regards

Cédric

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