Nokia 239 Owner's Manual

Contents

Nokia 239 Owner's Manual Manual pdf 37 page image

33If you make a mistake when locking or unlocking thephone, the messageCODE ERROR will be displayed.In this instance, start again from the beginning.On entering the correct lock code:– When locking the phone, the messageLOCKED willbe displayed, and will remain to remind you that thephone is locked.– When unlocking the phone, the messageUNLOCKED will appear briefly.For other options, which provide more-selectiverestrictions, you may use the Call Barring function(Menu 14), page 41, or the Memory lock function(Menu 15), page 42.System Select (Menu 1)Each cellular service area can have two cellularservice suppliers, called carriers. One carrier operatesthe ‘A’ system, and the other carrier operates the ‘B’system (these systems are generally known as‘non-wireline’ and ‘wireline’, respectively). Your phoneis designed to work with both carriers.This menu function allows you to program your phonefor optimum operation when in your home servicearea or when away from your home area (this is calledroaming). You may select any of the following roamingmodes:System A NAM System B NAMSelected* Selected*HOME AREA HOME AREA The phone uses only thehome area and home system.BOTH SYSTEMS BOTH SYSTEMS The phone uses either sys-tem A or B, whichever is thestronger signal.HOME TYPE A HOME TYPE B The phone uses only thehome system.NON-HOME NON-HOME The phone uses only theTYPE B TYPE A non-home system.*The home system depends on the current NAMselection; refer to ‘NAM Select (Menu 7)’, page 37.