Product: Mobile > Cell Phones > Sprint Cell Phones > SPH-N400I
The N400 does possess the Call Waiting option. While on a call, you will hear an alert and the LCD will display the incoming call. Press Talk to switch over to the new incoming call, to switch back simply press the Talk button again and to terminate the call press the End key.
Note: Call waiting service must be enabled on your account with your service provider to take advantage of this functionality on your phone. Please consult with your provider for information regarding any additional fees that may be incurred.
For more information on the SPH-N400 click here.