Features and MenuCards Main Menu110appears. Adjust the display’s contrast levels incrementally using the =keys or enter a number between 0 … 9.6.2.6 MenuCard “Protection”M P Select 5ƒProtection, followed by …1ƒCall prot. phone: (call protection phone) This switches call signalling onyour telephone for all calls or for internal only/for external calls only On / Off (withthe exception of VIP and hunt group calls). The most recently activated call pro-tection appears in the first line. To change this setting, select O, then the typeof protection (Int./ext. calls, Internal calls or External calls)you want to use. Press O to confirm your choice and activate the functionwith On.When call protection is activated, the caller hears either the ring tone or the busytone (this is configured by the system administrator as part of the user groups con-figuration).2ƒCall prot. key: (call protection key) You can configure call protection sep-arately for the trunk keys on your telephone, and switch the signalling of calls forall calls or for internal calls/external calls only on or off (with the exception of VIPand hunt group calls). Select the key for which you want to set call protection. Theprocedure is the same as for configuring the “Call prot. phone” function (see theprevious section).You can also configure call protection for a trunk key by long pressing the corre-sponding trunk key and selecting the 5ƒCall protect menu item.When call protection is activated, the caller hears either the ring tone or the busytone (this is configured by the system administrator as part of the user groups con-figuration). Calls from direct call keys are only signalled visually on this trunk key.Note: This type of call protection is only activated on the tel-ephone on which it was set. If your internal call number isconfigured on the trunk or team keys of other telephones,call protection is not automatically activated on those tele-phones.3ƒTelephone lock: enter your user PIN (PIN:). Activating the telephone lockswitches your telephone to a lower external access authorisation level. External