Internet call barringTo select whether anonymous calls are allowed fromthe internet, set Anonymous call barring on or off.Network settingsYour device can automatically switch between the GSMand UMTS networks. The GSM network is indicated within the standby mode. The UMTS network is indicatedwith .Select Menu > Tools > Settings and Phone >Network and from the following:● Network mode — Select which network to use. Ifyou select Dual mode, the device uses the GSM orUMTS network automatically, according to thenetwork parameters and the roaming agreementsbetween the wireless service providers. For detailsand roaming costs, contact your network serviceprovider. This option is shown only if supported bythe wireless service provider.A roaming agreement is an agreement between twoor more service providers to enable the users of oneservice provider to use the services of other serviceproviders.● Operator selection — Select Automatic to set thedevice to search for and select one of the availablenetworks, or Manual to manually select thenetwork from a list. If the connection to themanually selected network is lost, the device soundsan error tone and asks you to reselect a network.The selected network must have a roamingagreement with your home cellular network.● Cell info display — Set the device to indicate whenit is used in a cellular network based onmicrocellular network (MCN) technology and toactivate cell info reception.Connection settingsIn connection settings, you can edit access points andother connectivity settings.Data connections and access pointsYour device supports packet data connections(network service), such as GPRS in the GSM network.When you use your device in GSM and UMTS networks,multiple data connections can be active at the sametime, and access points can share a data connection. Inthe UMTS network, data connections remain activeduring voice calls.You can also use a WLAN data connection. Only oneconnection in one wireless LAN can be active at a time,but several applications can use the same internetaccess point.To establish a data connection, an access point isrequired. You can define different kinds of accesspoints, such as the following:144 Settings
