34If you are concerned about security, turn off the Bluetooth function, or set My phone'svisibility to Hidden. Only accept Bluetooth communication from other devices you recognizeand have agreed to accept.Packet dataGeneral packet radio service (GPRS) is a network service that allows mobile devices to sendand receive data over an internet protocol (IP)-based network.To define how to use the service, select Menu > Settings > Connectivity > Packet data >Packet data connection and from the following options:When needed — to set the packet data connection to established when an application needs it.The connection will be closed when the application is terminated.Always online — to set the phone to automatically connect to a packet data network whenyou switch the phone onModem settingsYou can connect the phone with Bluetooth wireless technology, or a USB data cable to acompatible PC, which allows the phone to be used as a modem to enable GPRS connectivityfrom the PC.To define the PC connection settings, select Menu > Settings > Connectivity > Packetdata > Packet data settings > Active access point, and activate the access point you want touse. To change the access point settings, select Edit active access point. > Packet data accesspoint, enter a name, and select OK. To connect the phone to a network, select Packet dataaccess point., enter the access point name (APN), and select OK.You can also set the EGPRS dial-up service settings (access point name) on your PC using theNokia Modem Options software. See "Nokia PC Suite," p. 51. If you have settings on both onyour PC and your phone, the PC settings are used.USB data cableYou can use a USB data cable to transfer data between the phone and a compatible PC or aprinter supporting PictBridge. You can also use the USB data cable with Nokia PC Suite.The phone automatically connects in the Music sync mode.To change the USB mode, select Menu > Settings > Connectivity > USB data cable >Nokia mode, Music sync, or Data storage.Nokia mode — to use the phone to interact with applications on a PC that has Nokia PC SuitePrinting & Media — to use the phone with a PictBridge compatible printer, or to connect thephone to a PC to synchronize it with Windows Media Player (music, video)Data storage — to connect to a PC that does not have Nokia software and use the phone as adata storage point