Samsung Behold T919

Hey everyone. I am a proud owner of a G1 which has a feature in the phonebook section which allows me to pick any given number and direct all its calls to my voicemail (someone I dont feel like talking to for example).

I am at work right now and I have a customer asking me if they can do something like that for the Behold.

Is there a way to block just 1 number from calling you on the Behold? If so, How?

Thanks everyone. Customer thanks you too.