Note:    A direct call number must be determined in the room monitor function before making a direct call for the first time (, ). The phone number must be changed each time this function is switched from room monitor to direct call and vice versa.

If a direct call number is specified, you can conduct direct calls in on or message status. This is also possible if the keypad lock is activated. 

If the mobile telephone is in dial, ringing or call status, press the on-hook key repeatedly (if necessary) to switch to on or message status. 

Press the direct call key. 

If automatic redial is activated:
Press the direct call key twice. 

Note:  Direct calls cannot be performed in the following cases:  If the mobile telephone is in default state. If the mobile telephone is in dial, ringing or call status. If the direct call number has been deleted in the room monitor function. If the room monitor function is activated. If the walkie-talkie mode is activated.