LG P714 Guia Del Usuario página 238

Calls
service.
Call duration – View the duration of calls including last call, dialed calls,
received calls and all calls.
Additional settings – This lets you change the following settings:
Caller ID: Choose whether to display your number on an outgoing call.
Call waiting: If call waiting is activated, the handset will notify you of an
incoming call while you are on the phone (depending on your network
provider).
34