for iOS 5.1 software

Conference calls
With GSM, you can set up a conference call to talk with up to ve people at a time, depending on
your carrier.
Note: Conference calling may be an optional service in some areas. Contact your carrier for
information.
Create a conference call:
1 Make a call.
2 Tap Add Call and make another call. The rst call is put on hold.
3 Tap Merge Calls. The calls are merged on one line and everyone can hear each other.
4 Repeat steps two and three to add additional calls.
Drop one call Tap Conference and tap next to a call. Then tap End Call.
Talk privately with a call Tap Conference, then tap Private next to a call. Tap Merge Calls to resume
the conference call.
Add an incoming call Tap Hold Call + Answer, then tap Merge Calls.
If your service includes conference calling, iPhone always has a second line available in addition to
the conference call.
Note: You can’t make a FaceTime video call when you’re on a conference call.
Using a Bluetooth device for calls
You can make and receive calls using a Bluetooth device paired with iPhone. See “Pairing a
Bluetooth device with iPhone” on page 34.
For information about using a Bluetooth device, see the documentation that came with the device.
Bypass your Bluetooth device:
Answer a call by tapping the iPhone screen. Â
During a call, tap Audio and choose iPhone or Speaker Phone. Â
Turn o Bluetooth in Settings > General > Bluetooth. Â
Turn o the Bluetooth device, or move out of range. You must be within about 30 feet of a Â
Bluetooth device for it to be connected to iPhone.
Emergency calls
If iPhone is locked with a passcode, you may still be able to make an emergency call.
Make an emergency call when iPhone is locked: On the Enter Passcode screen, tap Emergency
Call, then enter the emergency number and tap the green button.
In the U.S., location information (if available) is provided to emergency service providers when
you dial 911.
With CDMA, when an emergency call ends, iPhone enters Emergency call mode to allow a call back
from emergency services. While in this mode, data transmission and text messages are blocked.
Exit emergency call mode (CDMA): Do one of the following:
Tap the back button. Â
Press the On/O button or the Home button  .
Use the keypad to dial a non-emergency number. Â
Emergency call mode ends automatically after a few minutes, as determined by your carrier.
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Chapter 5 Phone