Using the Menu1998 Nokia Mobile Phones. All Rights Reserved. 35Erasing Recent Call ListsThis menu function (menu 3-4) allows you to erase all the phonenumbers and names in the Missed Calls, Received Calls and DialledCalls lists.Note: If a new SIM card, which is not recognised as an own-er card, is inserted into the phone, the contents of theMissed Calls, Dialled Calls and Received Calls lists will beerased.Show Call DurationYou can use Show Call Duration menu (menu 3-5) to view the ap-proximate duration of your outgoing and incoming calls in hours,minutes and seconds and to reset the call timers to zero.Inserting a new SIM card does not clear the call timers.Note: The actual time invoiced for calls by your service pro-vider may vary, depending upon network features, round-ing-off for billing, and so forth.Show Call CostsThis network service allows you to check the approximate cost ofyour last call or all calls if the call cost service is supported by thenetwork (menu 3-6). The costs are shown in terms of charging units.Call costs are shown separately for each SIM card.Note: The actual invoice for calls and services from yourservice provider may vary, depending upon network fea-tures, rounding-off for billing, taxes and so forth.