Re: [SR-Users] Call drops after 32 seconds with ACK Timeout

Hello Mykyta, The problem is that the Record-Route header being inserted in your 200 OK [1] is the private IP address of the Kamailio proxy, and this address is not the address that is used by the outside endpoint to reach the proxy. So, end-to-end ACKs and other in-dialog requests sent through it will not reach the proxy and will not be forwarded to the callee. It seems to me that your server has a 1:1 NAT'd public IP. The idiomatic solution to this problem from a Kamailio perspective is to take advantage of the 'advertise' parameter to the 'listen' directive: https://www.kamailio.org/wiki/cookbooks/5.0.x/core#listen If you set it to your public IP, e.g. listen=udp:10.17.0.9:5060 advertise x.x.x.x.x:5060 I think things will work better for you. :-) -- Alex [1] See line 45 here: https://pastebin.com/wyT3cBbD On Fri, Sep 01, 2017 at 05:35:08PM +0300, Микита Нікітенко wrote: -- 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/