VSX6000

[viper3two]

We have a VSX6000 that has worked fine, but recently when the call center calls, the unit will ring and it immediately drops the call. The logs show "Failed Attempt; The call has ended and that is all. Anybody know what may be causing this? I have the error log attached but can 't view it, it appears encrypted. 

Thanks

[Kendo]

Possibly a firewall issue.  Have any changes been made there?

Give polycom Support a call 888-248-4143 and we can offer some advice and even some test calls.