Asus P735 - Manual (Page 54)

When you receive a call, a message will appear giving you the
option to answer or reject the incoming call.
To answer or reject an incoming call:
• Tap Answer or press Call key to receive a call.
• Tap Ignore or press End key to reject a call.
TIP:
Press and hold Call key to switch receiver to speakerphone mode.
Receiving a call
To terminate a call:
• Tap End or press End key to terminate an incoming or outgoing call.
The following pop-up screen appears during an incoming call:
• Tap Answer to receive call or
• Tap Ignore to dismiss call.
Call key End key