Other people can temporarily use your telephone for outgoing calls as though it were their own. 

Press the key. The LED lights up 

Select and confirm. 

Enter the code. 

Enter the other user's station number. 

Enter the other user's telephone lock PIN.. 

Users who have not yet selected a personal identification number are prompted to do so on their own telephones. 

Dial the external number. 

This state is canceled at the end of the call.