Ok,
1)I installed Freebpx 13 on my test notebook according this manual http://wiki.freepbx.org/display/HTGS/Installing+FreePBX+13+on+Ubuntu+Server+14.04.2+LTS
2) install CertManager
3) Generate Certificate
4) Create pjsip extension 101 with default settings
5) click Save->Apply (everything ok)
6) change DTLS enabled -> ON
7) click Save->Apply (Failure with error I described above)
What I’m doing wrong ?
Thanks in advance.