Zte C350 User Manual page 31

Before the country code, hold 0 key to enter the international
prefix "+" (the character "+" replaces the international access
code) or key in international prefix e.g. "00" of international call
directly.
Country code + Area code + Telephone number
0086
Making Recent Calls
All calls you recently dialed, received or missed are saved in
your phone. All numbers are grouped as Missed Calls, Incoming
Calls and Outgoing Calls. When the list is full, the oldest number
will be erased automatically when new record is coming.
You can check the list as follows:
In standby mode, press Send key to view All Recent Calls.
The number listed in can be directly dialed by pressing
Send key.
Making Pause Calls
You can make use of pause call to dial an extention or voice
service call.
E.g. Key in phone number, press OK key to select "P" on the
display (character "P" added accordingly), and then key in number
afterwards. Press Send key to dial the first number, when connected,
press Send key again to dial the second number automatically. "P" can
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