I have a very serious problem with my hosted PBX:
It is available online but I already change the default 5060 to 10...
Firewall and fail2ban are already setup.
Sip phones can call using dialcheap and megavoip.
The problem is that hackers make calls using dialcheap and megavoip and I cannot stop it.
##, *2, Tr are already disabled
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