Use the local phonebook
To find and call a name: Enter Contacts 
, step to Call contact and press Select. Enter the first letter in the name or the whole name (will be displayed in Search field while entering text), or step in the contact list. Select the name and press Call.
To edit the contact: Select Edit contact, select the name and press Edit. Make your changes and press OK and then press Save.
To add a contact: select Add contact, select New or From call list. Press Add, enter the name and press OK. Select Number, enter the number, press OK and press Save.
To delete a contact: select Delete contact, select the name, press Delete and then press Yes.
Use the central phonebook
Enter Contacts 
, and select Central phonebook. Select Search by name, Search by number, or Last result. Enter the first letter(s) in the first name, and/or the first letter(s) in the family name. Press Search. The Central phonebook will be searched and a list of matching names will be displayed. You can step to the next entry in alphabetic order by pressing the Navigation key. Press More to add contact, or press Call or the
to make the call.
Use the company phonebook
The company phonebook has to be imported via the PDM/ AIWS before it will be visable in the handset. See User Guide, Avaya 3720 DECT Telephone.
Enter Call list. A contact from the company phonebook is
marked with the 
symbol. Select name/number and press Call, only work number is available for the contact and it is not editable.
Avaya 3720 DECT Telephone - Quick Reference Guide
