If you prefer to dial by contact from the Main View, open the Options menu and select General Preferences. Select the second pick list and select the Typing starts Contacts search option.
To see more information for a person in your Contacts list, highlight the name and press Center to view their address, company, and other details.
To start another search, press Backspace to delete letters you’ve entered. Or select Cancel to return to the Main View.
To view more favorite buttons, highlight the bottom row of favorites, and then press Down.
1.Press Phone/Send 
.
2.Select the Contacts favorite button.
3.Using the keyboard, begin entering one of the following for the contact you want to call:
•First initial and last name
•First name
•Last name
4.Select the number you want to dial.
5.Press Phone/Send 
to dial.
Dialing with a favorite button
Before you can use favorite buttons, you must create some favorites entries. See “Defining favorite buttons” on page 53.
1.Press Phone/Send 
.
2.Use the
3.Highlight the desired button.
4.Press Center to dial the selected button.
Dialing from a web page or message
Treo recognizes most phone numbers that appear in web pages or in text, email, or multimedia messages.
1.Use the
2.Press Center to open the Dial dialog box.
3.Press Phone/Send 
to dial.