SIP scammer caught and rejected
lacibaci:
My firewall/router is ZyXEL USG50. There is nothing special about my setup - OBi unfortunately accepts invites for all numbers not just your own.
Ideally, OBi would accept calls for my own number only or (through config) from registered server.
JoeSchmoe007:
Does your OBi have external IP address? I just wonder how you were singled out for this attack.
What kind of rule you have in your router to reject these and allow valid calls?
lacibaci:
No, no external address for OBi. It is behind NAT. I don't think I was singled out - most likely your ATA is probed as well... I have my firewall packet capture on (temporarily) and OBi is configured to reject all callers I don't like (inbound route rule)
JoeSchmoe007:
I am new to this. Are you saying that if you didn't reject these attempts in firewall scammer would be able to complete these calls and you would be charged?
lacibaci:
I suppose it is possible, although in my case they were not successful. The worst thing was that my phone rang in the middle of night. See my other thread:
http://www.obitalk.com/forum/index.php?topic=4142.0
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