● Access point — The access point name is neededto use your device as a packet data modem to acompatible computer.● High speed packet access — Enable or disable theuse of HSDPA (network service) in UMTS networks.SIP settingsSelect Menu > Settings and Connectivity > Admin.settings > SIP settings.Session Initiation Protocol (SIP) settings are needed forcertain network services using SIP. You may receive thesettings in a special text message from your serviceprovider. You can view, delete, or create these settingprofiles in SIP settings.Access point name controlSelect Menu > Settings and Connectivity > Admin.settings > APN control.With the access point name control service, you canrestrict packet data connections and allow your deviceto use only certain packet data access points.This setting is only available if your SIM card supportsthe access point control service.To turn the control service on or off, or to change theallowed access points, select Options and thecorresponding option. To change the options, youneed your PIN2 code. Contact your service provider forthe code.81 Connectivity