Eugene Posted May 29, 2012 Report Share Posted May 29, 2012 Hi there, I'd like to ask for some advice on securing access to a Snom One installation - basically I noticed my phone (just have one phone configured on it) ring late at night and started investigating. I've now had two incidents where somehow someone on the net was able to ring my phone and clearly they were running through different dialling patterns to see which ones worked. After the first incident I changed the firewall rules to only allow traffic from a couple IPs that are mine of those of customers but someone was able to do it again after that. I may have done something wrong in the firewall, not sure. What I really don't understand is that on both occasions they didn't have a SIP registration on an extension (or "account") so they must have been dialling in some other route and routing from there? Any advice would be appreciated! I guess ideally I'd like to be able to register on an extension from a dynamic IP, say from my iPad or phone with a SIP client but I'm confused now as to how to secure the phone system. Thanks! Quote Link to comment Share on other sites More sharing options...
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