Any way to block callers labeled "unknown" by RingCentral?

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This conversation has been merged. Please reference the main conversation: Can I block a number for all extensions at once?

"How to Block Unknown Callers" FAQ on this is somewhat misleading because it only shows how to block those with a caller ID (and not really "unknown")
I need to block all callers without caller ID -those that RingCentral marks as unknown.TIA
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Posted 4 years ago

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Kim, Alum

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Under "Super Admin" extension you can block them and it will block for ALL extensions within the company. 

Users > Super Admin > Screening Greeting & Hold Music > Blocked calls 
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Abigail Manning

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This reply was created from a merged topic originally titled How do I block calls when the ID is "No Caller ID" ?.

Our main corporate line seems to be getting spam voicemail from a line that indicates "No Caller ID Available". We are getting 5-10 per day and the message is always blank and lasts just a few seconds. Also, the phone never actually rings. The messages just show up with no audio. Any thoughts?

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