If the system administrator has entered a name for at least one internal user or system speed dialling destination, then you can use the system telephone directory for dialling purposes. 

Calling the system telephone directory

Press the Talk key. 

Call the system telephone directory. The first entry appears. 

Finding an entry

Enter the first letters of the name you are looking for. The name search begins.
The search result becomes more precise as each letter is entered, i.e. the number of names found is reduced. 
Only the first letter of a key can be entered. 

Select the user you want. 

Dialling the entry

Confirm your selection. The selected number is called. 

Quitting the redial list

Press the Display key.
 

Note:  Phone numbers dialled from the "System telephone directory" are not stored in the redial list.