My son uses FreedomPop which uses our wifi for his phone calls - if he wants. He started getting ghost calls like crazy last night from numbers such as 8001, 1001, 100, etc. I turned wifi off and the calls stopped. After doing some digging, it seems this may be a result of SIP Vicious. Is there a way to block this through the modem or router? I use Armstrong Cable who provides the modem (Arris TM822G) and I have NetGear Router (WNDR4500v2). Thanks for any help in advance.
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