Open the Phone application.

Dial tab
Tap Call  to dial
the number that you entered.
 to dial
the number that you entered.
Tap the Voice Dialer Key to dial by saying the number.
Tap the Voicemail Key to access your voicemail feature.
Tap the Message Key to send a message.
To dial an international number, tap and hold the 0 Key to enter the plus (+) symbol. Then, enter the international prefix for the country; followed by the full phone number.
Delete Key
Tap the keys on the dialpad to manually enter a phone number.
If you enter a wrong number, tap the Delete Key  to erase digits one by one.
 to erase digits one by one.
To erase the entire number, tap and hold the Delete
Key  .
.
To dial an international number, tap and hold the  Key to enter
the plus ( + ) symbol. Then, enter the international
prefix for the country; followed by the full phone number.
 Key to enter
the plus ( + ) symbol. Then, enter the international
prefix for the country; followed by the full phone number.
Tap Call  to dial
the number that you entered.
 to dial
the number that you entered.
You can use other phone features while the call is underway.
If you open another application, the Call icon  appears
in the Status Bar for the duration of the call.
 appears
in the Status Bar for the duration of the call.
Press the Volume Keys to adjust the call volume.
Use the on-screen dialpad to enter additional numbers, place the call on hold and take an incoming call, add another call, use the speakerphone, end the call, and other options.
If you opened other applications while on a call, you'll
need to return to the Call screen and tap End call  to end the call. You can tap the Home Key
 to end the call. You can tap the Home Key  , then Phone
, then Phone  or tap the Contact's name or number at
the top right corner of the Home screen. You can also drag the Notifications
panel down and tap the Current call icon
 or tap the Contact's name or number at
the top right corner of the Home screen. You can also drag the Notifications
panel down and tap the Current call icon  .
.