I am seeing the following in the CLI….

[Feb 12 02:55:41] NOTICE[25454]: chan_iax2.c:9712 socket_process: Registration of 'A28881' rejected: 'Registration Refused' from: '67.215.233.178'

[Feb 12 02:55:41] NOTICE[25456]: chan_iax2.c:9712 socket_process: Registration of 'A28241' rejected: 'Registration Refused' from: '67.215.233.178'