Making Calls General Functions392.1.10 Hands-free, Open-listening ModeIn hands-free mode, the handset is on-hook (only on the OpenPhone 63 and theOpenPhone 65). You hear the caller over the loudspeaker and speak through themicrophone of the handset (although it is on-hook). In the case of open listening,the loudspeaker is activated in addition to your handset.Calling via the HandsetTo switch open listening on/off, press the hands-free key . To switch tohands-free mode (only on the OpenPhone 63 and the OpenPhone 65), press andhold down the hands-free key and replace the handset.Initiating a Hands-free CallInstead of lifting the handset, press the hands-free key . End the call bypressing the hands-free key again (only on the OpenPhone 63 and theOpenPhone 65).2.1.11 Blocked/Unblocked Telephone NumbersNote: Your telephone can be blocked from dialling all or se-lected external numbers. Emergency numbers can be en-tered in a special list, irrespective of your trunk line accessrights, and thus always be dialled. Consult your system ad-ministrator for details.2.1.12 Telephone LockIf you wish to permit another person to temporarily use your telephone, you canactivate the telephone lock via the 5ƒProtection: 3ƒTelephone lockmenu entry (see page 91). Independent of the system configuration, when the tel-ephone lock is activated, the functionality range is restricted on the telephone,incl. possibly restricted dialling rights.When the telephone lock is activated, the LED of the info key is illuminatedwhile the info key is without function then. To deactivate the telephone lock, pressthe MenuCard key and enter your user PIN thereafter.
