303. Listen for the tone, then press OK. (Your phone willdisplay Wait for tone, then press OK)4. Listen for the tone again, then press OK. (Yourphone will display Wait for tone, press OK again.)Note: This procedure may not apply to all calling card optionsprogrammed into your phone. Please look at the back of yourcalling card or contact your long distance company for moreinformation.Change lock codeThis feature allows you to change your lock code.See “Changing your lock code” on page 42.Change security codeThis feature allows you to change your security code.See “Changing your security code” on page 61.Clear call listsThis feature will clear all dialed numbers, as well asnumbers of answered calls and missed calls. You cannot undo this operation, so be careful.Also, see “Call log” on page 23.1. Press Menu 2 4 (Call log - Clear call lists)2. Highlight either All, Missed, Dialed, or Received andpress OK (All will clear all call lists, while the othersclear their respective call lists)Clear timersThis feature clears all call timers for the currently-selectedNAM. See “Call timers” on page 24 for more details.1. Press Menu 2 5 4 (Call log - Call timers - Clear timers)2. Enter security code at Security code: and press OK