If some1 will have same problem:
Config file from 7911 works just fine.
Remember to change "transportLayerProtocol" to 2 if you dont have tcp support enabled.
This is great, but guys, my device even doesn't ask for an TFTP.
How did you make it ask for a file from tftp server ?
Previous models are asking this by default, but this one requests IP address, and goes to 'unprovisioned'.
I tried 'next-server' option without a 'filename', just to loook what files it's interesetd in, but still all I got is silence after an IP renewal.
Upd: Got it. Now its able to register on the *, and I'm make exactly one call, after that it goes to 'registering' loop and doesn't answer anymore. And doesn't ring.
Upd2: after removing the