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While On a Call
When you’re on a call, the screen shows call options.
The call options may vary, depending on which iPhone you’re using.
Mute your line Tap Mute. You can still hear the caller, but the caller can’t
hear you.
Use the numeric keypad to
enter information
Tap Keypad.
Use the speakerphone or a
Bluetooth device
Tap Speaker. The Button is labeled Audio Source when
a Bluetooth device is available, which lets you select the
Bluetooth device, iPhone, or Speaker Phone.
See contact information Tap Contacts.
Put a call on hold iPhone 4:
Touch and hold Mute.
iPhone 3GS: Tap Hold.
Neither party can hear the other. When a call is on hold, tap
Hold again to return to the call.
Make another call Tap Add Call.
You can use other apps during a call—to check your schedule in Calendar, for example.
Use another app during a call: Press the Home button, then tap an app icon. To
return to the call, tap the green bar at the top of the screen.
Note: The 3G (UMTS) cellular network supports simultaneous voice and data
communications on GSM models. For all other network connections (EDGE or GPRS
on GSM models, or EV-DO or 1xRTT on a CDMA model), you can’t use Internet services
while you’re on the phone unless iPhone also has a Wi-Fi connection to the Internet.
End a call: Tap End Call. Or press the center button on your iPhone earphones.
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Chapter 5 Phone