Samsung SGH-x427 User Manual page 126

Network Services
You can specify individual call waiting options for voice calls
and/or data calls.
To set your call waiting options:
1. Select the type of calls, voice or data, to which the call
waiting option is to be applied by pressing the Up or
Down key and then press the Select soft key.
The screen informs you whether call waiting is activated
or deactivated.
2. You can activate or deactivate the call waiting feature as
necessary by using the Activate or Deactivate soft
key respectively.
To return to the previous screen, press the Exit soft
key.
You can also deactivate all call waiting settings by selecting
the Cancel All option.
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