Good question. I've never used that feature. Blacklist is not defined anywhere on Voipo's support page, so there's a big question on what to expect. Maybe one of Voipo's support staff can chime in and explain what exactly happens when a "Blacklisted" caller tries to call your number.
You could experiment though.......temporarily blacklist your cell phone number, then attempt to call your Voipo number and see what happens.
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