S e t t i n g s573. Scroll to the calling card of your choice, select Options > Select > OK.4. Press the end key to return to the start screen; then enter the phone number,including any prefix (such as 0 or 1) that your calling card may require whenyou make a calling card call. See your calling card for instructions.5. Press and hold the call key for a few seconds until Card call is displayed.6. When you hear the tone or system message, select OK.International prefixYou can store an international dialing prefix into your device. When you enter + atthe beginning of a phone number, your device automatically inserts the internationaldialing prefix that you have stored after you press the call key. See "Insert dialingcodes," p. 39.Data or fax callsData or fax calling is a network service. See "Network Services," p. 5. If your wirelessservice provider supports this feature, you can set up the device to send or receivedata or fax calls when a terminal, such as a PDA or PC, is connected.For better performance during data calls, place the device on a stationary surfacewith the keypad facing downward. Do not move the device by holding it in yourhand during a data call.For more information on connectivity, refer to the PC/PDA Connectivity Guidewhich can be downloaded from the Nokia website at http://www.nokiausa.com.1. At the start screen, select Menu > Settings > Call settings > Data/fax calls >Incoming data/fax call.2. Select one of the following options:Normal—The device receives incoming calls as usual.Data calls only—The device receives only data calls.Fax calls only—The device receives only fax calls.3. When you are finished receiving the fax or data call, repeat steps 1 and 2 andselect Normal.Data transferYou can view the transmission speed when sending or receiving data or fax calls.At the start screen, select Menu > Settings > Call settings > Data/fax calls > Datarate display > Graphic or Off.