I don't know about anyone else, but this really just stinks. This is a static setting that should be provided as part of ANY level service purchased from Verizon. I am not talking about blocking specific numbers, oddly, they allow a few of those for free. I am talking about blocking unavailable calls. If it pisses you off like it does me that Verizon is trying to charge $5 a month extra just to not allow anonymous calls, its actually cheaper for the same service at trapcall.com, if you pay for a year or more of service.

On my comcast phone, you just hit *77.  End of story.