Haier M560C User Manual page 19

When you are making a call, you can dial another number.
Enter the second number or press [Phonebook] option in [Options] to select in
phonebook and then press [Send key]. When the second number is put through,
the first call will be held automatically.
Answer second incoming call
If there is a second incoming call in the process of talk, the screen will display a
second call is waiting. Call wait function is only available when the network
supports this service and you have set to Enabled in Call wait menu.
Press [Answer soft key] or [Send key] to answer second call. When the second
call is put through, the first call will be switched to hold state.
Press [End key] to terminate the second call.
Select current phone number
Select the number in talking and press [Options] to display following options:
Switch: Current call enters hold state.
Conference: Add held call to conference call.
End single call: End one call.
Phonebook: Enter phonebook.
Message: Enter SMS.
Record: Enter record state (C card does not provide this function).
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