Samsung GH68-06626A User Manual

28Menu functionsClosed user group (Menu 3.6)Use this menu to set incoming and outgoing calls to berestricted to a selected user group. For details abouthow to create a closed user group, contact yourservice provider.• Index list: list, add, or delete CUG indexnumbers. Press <Options> to access the optionsfor setting up an index list.• Outside access: enable calls to numbers otherthan those in the Closed user group. This featuredepends on the nature of your CUG subscription.• Default group: enable the default CUG, if youhave set one with your service provider. Whenmaking a call, you are given the option of usingyour default CUG, instead of selecting one from thelist.• Deactivate: deactivate the CUG function, if thedefault group is enabled or a CUG index isselected.Band selection (Menu 3.7)For the phone to make and receive phone calls, itmust register with an available network.Your phone can handle any of the following types ofnetworks: GSM 1900 and Combined GSM 900/1800.The country where you purchased your phonedetermines the default band that it uses. When youtravel abroad, you must remember to change to anappropriate band.When you select a new band, your phoneautomatically searches for all available networks. Yourphone registers with a preferred network within theband.