I have found that if the phone lines are separately billed, then you can receive the promo for each of the lines. I have three lines at home, each of which is separately billed. SBC is always trying to get me to consolidate the bills for "my bill paying convenience". Hah, don't they know that my pursuit of miles will always trump "their" convenience (and we all know that the phone companies could care less about anything that is a convenience for thier customers. If they are trying to push anything for conveniece, we all know whose convenience it is, thiers not ours.).