Hi Daniel, Yes, the TLS connection is terminated to kamailio. I can have multiple kamailio instances (not limited to two). I managed to get some progress and establish the call but the ACK is not reaching its destination. I attached a PNG that shows the sequence and what I'm doing in kamailio. any help would be appreciated. Thanks Joey. On 23 Sep 2020, 11:29 +0300, Daniel-Constantin Mierla &lt;miconda(a)gmail.com <mailto:miconda@gmail.com>>, wrote: > > Hello, > > if tls connection from client is terminated to Kamailio, then a phone > can be reachable only via the Kamailio that accepted its connection. > You can add local path to the registration and then enable: > > * > https://www.kamailio.org/docs/modules/stable/modules/registrar.html#registr… > <https://www.kamailio.org/docs/modules/stable/modules/registrar.html#registrar.p.path_check_local> > > Now, just some different ideas to explore: if you just have only two > Kamailio systems and do not expect more, you can skip replication and > just route to the other Kamailio if lookup() location returns false > for traffic coming from endpoints. If traffic is coming from the > other Kamailio, return 404. This works fine and can be simpler > approach if there is a single phone per user account. In case there > can be many phones per user account, then after lookup location add a > branch with the address of the other Kamailio. > > Cheers, > Daniel > > On 23.09.20 09:07, Joey Golan wrote: >> Hello, >> >> I’m trying to make a call between 2 users registered (TLS) on two >> different kamailio instances behind haproxy with NAT handling. >> >> UE1 is registered to kamailio1 >> UE2 is registered to kamailio2 >> >> DMQ and dmq_usrloc are enabled so each kamailio can see all >> registered users. >> >> What else do I need to do in order to make it work properly? >> >> Thanks, >> >> Joey. >> >> _______________________________________________ >> Kamailio (SER) - Users Mailing List >> sr-users(a)lists.kamailio.org <mailto:sr-users@lists.kamailio.org> >> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users <https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users> > -- > Daniel-Constantin Mierla -- www.asipto.com <http://www.asipto.com> > www.twitter.com/miconda <http://www.twitter.com/miconda> -- www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda> > Funding: https://www.paypal.me/dcmierla <https://www.paypal.me/dcmierla>