Ошибки в логах:
2016-10-24 18:44:20 asterisk[336]: WARNING[1775]: db.c:299 in ast_db_put: Couldn't execute statment: SQL logic error or missing database
2016-10-24 18:44:20 asterisk[336]: ERROR[1775]: utils.c:1220 in ast_carefulwrite: write() returned error: No space left on device
2016-10-24 18:46:15 asterisk[336]: WARNING[2980]: pbx.c:5296 in __ast_pbx_run: Channel 'SIP/SIP-PROVIDER-137587095857d179df725fd-00000010' sent into invalid extension 'CALLFLOW-START' in context 'CALLFLOW-174060620758072322059c9', but no invalid handler