Can't register device
From KolmiSoft Wiki
- Make sure settings are correct (server IP/username/password)
- Make sure UDP ports 4569, 5060, 10000-20000 are open.
- Check Asterisk CLI when trying to register with command sip debug or iax2 debug.
- If no output at all - ports are closed
- If some output - follow error messages, e.g. SIP 2.0/404 Not found or similar.
