We are getting random calls from an IP address that is trying to use our UC320W to dial out. It is causing our phones to ring (shows call from '1000' or 'default' for example)
It connects via port 5064 . I would like to block this IP from connecting. I've tried port forwarding port 5064 and I've tried putting a firewall in front but I cant get the firewall to work with the UC320W (It's a Draytek 2920n). is there anything else I can try?
Dec 8 11:52:24 UC320W user.debug voice: INVITE sip:email@example.com:5064 SIP/2.0
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