I have an SX20 users reported last night could not make calls or receive them.  The unit was online as far as I can tell.  How would I read the logs to see if it in fact had an ethernet link? Thanks,Nate

I have a Cisco C20 "TC4.2.1.265253" that exists outside of a firewall with a public IP at one of our sites.  It has been receiving random calls from number@itsownip to number@itsownip.  These calls are random throughout the day, and appear in the mid...