How to Use a Long-Distance Calling Card Number for Centro
- 1). Purchase a long-distance card from your favorite provider.
- 2). Dial the phone card's number on your phone and press "Send." Many long-distance providers offer toll-free numbers for their customers.
- 3). Enter the phone card PIN number. Wait for instructions from the long-distance provider and enter the long-distance number. The long-distance card provider will connect you to that number and charge you according the rate listed on the card.
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