[SR-Users] [sr-dev] new module: gzcompress

Kristian Kielhofner kris at kriskinc.com
Mon Sep 23 17:32:20 CEST 2013

It's not Kamailio (or any of these other projects) that I'm concerned
about.  As I've noted I'm most concerned about "in the middle" devices
like NATs, firewalls, etc.

Important clarification though, thanks!

On Mon, Sep 23, 2013 at 11:25 AM, Alex Balashov
<abalashov at evaristesys.com> wrote:
> To note, though, Kamailio has no problem dealing with fragmented UDP. It
> becomes a problem when sending UDP that gets fragmented to a UA that can't
> reassemble it, or when sending to Kamailio through a NAT gateway that can't
> properly reassemble it.
> -- Alex
> Daniel-Constantin Mierla <miconda at gmail.com> wrote:
>> Hello,
>> following the Kristian's email and blog about Apple Facetime using
>> compressions of the body
>> (http://lists.sip-router.org/pipermail/sr-users/2013-September/079816.html),
>> I did a quick coding Friday evening and put together a new module that
>> uses zlib to compress/decompress the body for SIP messages - I named it
>> gzcompress, its readme is available at:
>> - http://kamailio.org/docs/modules/devel/modules/gzcompress.html
>> Might be useful for those that want to save bandwidth when peering two
>> kamailios or target to get under MTU size. It is now enabled for SIP
>> traffic only, but the plan is to get it for http as well, where it can
>> be more relevant for xcap traffic.
>> Cheers,
>> Daniel
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Kristian Kielhofner

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