How to Accept and Reject Calls on Your iPhone 4S
When someone calls you on your iPhone 4S, you can choose to take the call or choose not to take it and send the caller directly to voicemail.
You have three options for accepting a call:
Tap Answer and greet the caller in whatever language makes sense.
If the phone is locked, drag the slider to the right.
If you are wearing the stereo earbuds that come with the iPhone, tap the microphone button. Microphone adapters for standard headsets may also work.
You have a fourth option if you wear a wireless Bluetooth headset or use a car speakerphone. Click the Answer button on your headset or speakerphone (refer to the manual if the process isn’t intuitive).
If you’re listening to music in your iPhone’s iPod when a call comes in, the song stops playing and you have to decide whether to take the call. The music resumes from where you left off after you take a call.
Callers sometimes call at inconvient times. If you’d rather get back to the person who’s trying to get in touch with you, you have three ways to reject a call and send the call to voicemail:
Tap Decline. Couldn’t be easier than that.
Press the sleep/wake button twice in rapid succession. (The button is on the top of the device.)
Using the supplied headset, press and hold the microphone button for a couple of seconds, and then let go. Two beeps let you know that the call was indeed rejected.