While some companies do it for free, others charge both a set-up and a monthly fee for this privilege. In addition, not every long-distance carrier can support call blocking. If you want to avoid paying for pay phone calls, you'll need to switch carriers. Well, right now, not every pay phone is equipped to pass on these charges. The same long-distance companies are contesting the latest ruling.
Quick tips Get any rate quotes in writing.
Long-distance companies seem to be hedging on both their billing changes and their blocking fees. Check calling card fees. Since most calling card calls are made from pay phones, it's worth checking what fee you will be assessed. It may even be worth shopping around. Track your traffic.