Hello, I just got my Ooma a few weeks ago and (of course) love it.
One of my favorite features of Ooma is the blacklist with wildcard feature.
But I can already see that there is going to be a limitation to this (even with the 250 entries allowed), as I get at least 3 calls a day from scammers which are always changing their numbers. Besides I’d rather not get the calls in the first place.
So if Ooma reads this forum, just wanted to chime in here and throw my support behind whitelisting as others have mentioned.