Polycom VVX 1500 C Business Media Phone for Cisco Unified Communications Manager (SIP) - Manual (Page 89)

Customizing Your Phone
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Contacts with a speed dial index number can be automatically
assigned to a Speed Dial Key for one-touch dialing. For more
information, see Managing Speed Dial Keys on page 3-38 .
— (Optional.) Tap the Label field, and then enter a label for the contact.
You can enter a maximum of 32 symbols, letters, or numbers.
If you specify a label, the label will be the first item that displays for
the contact in the Contact Directory and on the Speed Dial
Information screen (before the contact’s first and last names, if
specified). The label will also display on the contact’s Speed Dial Key.
In the following figure, the label “Manager” has been assigned to
Lauren Gates. As a result, Lauren Gates’ Speed Dial Key displays
“Manager” instead of “Lauren Gates.”