We are using 2901 router someone hack the router and use our internal extension for dialing international calling outside ? How it is possible that someone use our internal extension.
We are using 2901 router someone hack the router and use our internal extension for dialing international calling outside ?
No one hacked into the router. I suspect the culprit brute force the SIP credentials between the router and the SIP provider and used that to make unauthorized calls.
