Thanks for your quick response. No, you can't remove those headers. They serve an essential purpose and the > endpoints won't consider the requests or responses valid without them. >
It should be theoretically possible to remove some of the via and record-route headers, assuming the contact is also re-written. The end point's (phones) themselves do not need to be aware of anything downstream of the SIP server they're registered too. > > See my blog post on this topic: > > > http://blog.csrpswitch.com/sip-udp-fragmentation-and-kamailio-the-sip-header-diet/ Thanks for the link! > > > And you certainly can't hide topology this way. > > -- Alex > > > On 03/19/2016 09:26 PM, Marrold wrote: > > Hi, >> >> Is there any way to remove Via and Record-Route headers from requests >> sent to an endpoint and update the contact header, but have Kamailio >> statefully remember where the replies need to route? >> >> I imagine this would involve mangling the packets slightly to behave >> similar to a B2BUA. >> >> My motivations, in order of priority - >> >> 1) Reduce UDP packet size to avoid MTU limitations >> 2) Improve interoperability, don't expect end points to be able to >> properly parse / process many via / record-route headers >> 3) Hide topology. >> >> If someone could point me in the right direction in terms of >> configuration or modules, that would be great. >> >> Thanks >> >> >> _______________________________________________ >> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list >> sr-users@lists.sip-router.org >> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users >> >> > > -- > Alex Balashov | Principal | Evariste Systems LLC > 1447 Peachtree Street NE, Suite 700 > Atlanta, GA 30309 > United States > > Tel: +1-800-250-5920 (toll-free) / +1-678-954-0671 (direct) > Web: http://www.evaristesys.com/, http://www.csrpswitch.com/ > > _______________________________________________ > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list > sr-users@lists.sip-router.org > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users >
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