Hello everyone,

this is my first message. I'm glad to become a part of this big community.

I'm new in SER technology. I worked in Asterisk PBX only, until now.

For the first time i installed Elastix MT witch have kamailio in front of asterisk, and now i have a problem.

I attach a diagram of initial configuration in my lab and pcap file and kamailio.cfg.

Regardless diagram, x.x.x.x addresses are public and y.y.y.y are private.

When i test connection 1.1 is working,

connection 1.2 not working

connection 2.2 not working

connection 1.3 not working

connection 2.3 working

Phones are connected(authenticate) to kamailio, but when i look at asterisk cli those phones are unreachable, but can call, but can not be called.

On router where android works, Siemens dont, and where pc softphone works other UAC dont work.

I think that my nat-traversal configure good, regardless of documentation.

Please tell me, if someone has some ideas of solve this problem.

Thanks in advance, and sorry for my bad english :)