Network settingsPress , and select Tools > Settings > Phone >Network.Your device can automatically switch between theGSM and UMTS networks. The GSM network isindicated with in the standby mode. The UMTSnetwork is indicated with .● Network mode — Select which network to use.If you select Dual mode, the device uses the GSMor UMTS network automatically, according to thenetwork parameters and the roamingagreements between the wireless serviceproviders. Contact your network service providerfor more details. This option is shown only ifsupported by the wireless service provider.● Operator selection — Select Automatic to setthe device to search for and select one of theavailable networks, or Manual to manuallyselect the network from a list. If the connectionto the manually selected network is lost, thedevice sounds an error tone and asks you toreselect a network. The selected network musthave a roaming agreement with your homecellular network.A roaming agreement is an agreement betweentwo or more service providers to enable the usersof one service provider to use the services ofother service providers.● Cell info display — Select On to set the deviceto indicate when it is used in a cellular networkbased on microcellular network (MCN)technology and to activate cell info reception.Connection settingsIn connection settings, you can edit access pointsand other connectivity settings.You can also edit settings for Bluetooth connectivityin the Bluetooth connectivity application. See"Settings," p. 37.You can also edit settings for data cable connectionsin the USB application. See "USB," p. 41.Data connections and accesspointsYour device supports packet data connections(network service), such as GPRS in the GSM network.When you use your device in GSM and UMTSnetworks, multiple data connections can be activeat the same time, and access points can share a dataconnection. In the UMTS network, data connectionsremain active during voice calls.You can also use a WLAN data connection. Only oneconnection in one wireless LAN can be active at atime, but several applications can use the sameinternet access point.150 Settings
