Hi Mike,
So many guys get into the long phone talk thing and scare girls off. Don’t fall into that trap!
When you do call her, keep it very short and simple. She needs to get to know you... so when you call her, do so with the goal of inviting her to do something with you.
And make this first activity together something simple and non-threatening. A fun activity, like a movie, a concert. Don't overdo it or you'll seem desperate and clingy.
If you have her cell phone, maybe even text her, it's even less threatening, and lots of calls go to voicemail anyway; and that can be awkward. Jennifer disagrees with me on this btw, so make your choice. LOL
Oh, and how long should you wait before you call her? Many "experts" will say a certain number of days, etc. I say that's bogus. You call her the next day or whenever you comfortably get to it - don't play head games, that's not a good basis for a potentially blossoming relationship.