Hi, ACKs in response to negative replies are what are called hop-by-hop ACKs, and should be addressed to the next hop.
Also, it is not necessary to explicitly do an append_branch() in failure_route nowadays if manipulating the RURI. It'll be done for you. -- Alex On Tue, Apr 17, 2018 at 02:22:39PM -0400, m...@dopensource.com wrote: > Hey All, > > I have a weird issue. I’m sending a SIP INVITE to a SIP Service that send’s > me back a 433, which let’s me know that the number is invalid. I then send > an INVITE to a media server (FreeSwitch) to play a message that the number > can’t be called, which looks to be working. But, the final ACK from the SIP > client is sent back to the SIP Service versus the media server. The > following diagram below depicts this: https://snag.gy/qMWfvk.jpg. The code > snippet in the failure_route for the the SIP Service has this: > > if (t_check_status("403|433")) { > if ($avp(s:teleblock_media_enabled) == "1") { > # make sure media server can route back to kamailio > record_route(); > revert_uri(); > $ru = "sip:" + $T_reply_code + $rU + "@" + > $sel(cfg_get.teleblock.media_ip) + ":" + $sel(cfg_get.teleblock.media_port); > append_branch(); > t_relay(); > exit; > > } > > > > > _______________________________________________ > Kamailio (SER) - Users Mailing List > sr-users@lists.kamailio.org > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users -- Alex Balashov | Principal | Evariste Systems LLC Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/ _______________________________________________ Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
