Anyone have VOIP?

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Hello, I'm considering voip, however I'm confused how the router works. I've seen a couple that say two port router, does that mean it only has two phone jacks? Does that also mean I must run a wire from wherever my phone is to the router? If so that would be a real pain, as I have one phone conveniently next to my computer and the other is 2 floors down in the kitchen. Can anyone clarify this for me?