The per-minute rates are generally high (on the order of $0.30/min) and the prepaid time generally expires (in 10-30 days for low-dollar loadings). If you are a

The per-minute rates are generally high (on the order of $0.30/min) and the prepaid time generally expires (in 10-30 days for low-dollar loadings). If you are actively searching for work, you need to have enough time loaded to handle a telephone interview and to be put on hold from time to time. Once that's covered, you need to top up the time at regular intervals in order to avoid losing what you've already paid for -- and that leads to a non-refundable "savings account" with your provider. Prepaid is not significantly cheaper than a low-end contract, and can be more expensive.