Zte -C F451 User Manual page 17

 Missed: View the calls you did not answered.

Received: View the calls you answered.
 Dialed: View the calls made from your phone.

All: View the missed, received and dialed calls.
 View Timers: View the information of Last call, All calls, Received calls, Dialed calls,
Roaming calls, Transmit data, Received data, Total data, Last reset, Lifetime calls and
Lifetime data counter. And you can also reset them separately or together.
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