I have been with RingCentral since 2009 and have generally had a positive experience. However, recently (since Sep 18th), I have been receiving about 10 SPAM calls per day on my Toll Free Number from spoofed local numbers (never being used twice) and I was just charged for extra minutes for the first time in about 10 years. Each call lasts from about 2 to 10 minutes, but nobody ever hits an extension or leaves a message and they always show up as missed calls. It seems to be computer driven due to the volume.

Does anyone know what is actually going on here? Who might be doing this and what is their goal? What is the point in someone - or a computer calling my number and staying connected to the auto attendant for 5 to 10 minutes at time. How do I prevent someone from doing this going forward?

The auto attendant is scheduled to cycle 3 times and then hangs up, but this does not prevent the call from lasting up to 10 minutes.

RingCentral tech support is completely useless as far as providing information on this. Any insight would be very much appreciated.

Thank you in advance.