As it says in the help if you press F1.
Dial By Name Default = On
When on, allows the directory features on various phones to match the dialing of full names. This option is fixed as On and is not adjustable.
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Dial by Name
IP Office 5.0 allows the option Dial by Name to be selected as an auto attendant option. Callers selecting this option are asked to dial the name they require and then press #. The recording name prompts of matching users are then used to allow the caller to make their selection.
The name order used for set to first name/last name or last name/first name by the Dial by Name Match Order setting on the Auto Attendants settings.
The name used for matching is taken from the user's configuration within the IP Office configuration. The Full Name is used if set, otherwise the Name is used.
• Users are exclude from Dial by Name if they:
• Are marked as Ex Directory (User | User) in the IP Office configuration.
• Do not have a recorded mailbox name prompt. They can record their own name by dialing *05 after accessing their mailbox.
• The function assumes that a standard ITU lettered dialing pad is being used.
ITU keyboard
• The action prompts the caller to dial the name they require and then press #. For example, dialing 527 matches names starting with JAS (for example "Jason") and KAR (for example "Karl"). Callers can also press *# to exit without making a selection.
• If no matches are found, the caller is given the option to retry.
• If 10 or less matches are found, the matching mailbox name greetings are played as part of a selection list, i.e. "Press 1 for …, press 2 for …, …".
• If more then 10 matches are found, the caller is prompted to either press # to hear the first 10 or to dial more characters to reduce the number of matches. If they select to play the list, after each set of 10 matches they can either make a selection or follow the prompts for other options.
"Trying is the first step to failure..." - Homer