Another Reason to use GrandCentral
I have before said how cool I think this service is, and I found yet another feature I like.

You can set GC to screen callers that have private numbers. You think you’re better than me? BLOCKED!

Of course, I assume, callers can give their name, so when the call rings through to my phone, I can either chose to answer, or send the call to voicemail. There’s also mad powerful spam protection, which is good, since telemarketers seem to ignore the National Do Not Call Registry.