Do pollsters call VoIP phones?
Increasingly many people have phone service over cable or on Skype. There is no law against pollsters calling these phones, but it is a bit tricky because customers can often choose any area code they want. Someone living in Seattle can choose a Florida area code so his mother can call him as a local call. When a pollster calls someone with a Florida area code and gets someone in Washington, the accuracy of the poll is not improved.
