During a call, you can make or receive another call. If you receive a second call, iPhone beeps and shows the caller’s information and a list of options.
NOTE: Making and receiving a second call may be an optional service in some countries. Contact your carrier for more information.
To ignore the call and send it to voicemail, tap Ignore.
To hold the first call and answer the new one, tap Hold Call + Answer.
To end the first call and answer the new one, tap End Call + Answer.
Tap Add Call. The first call is put on hold.
Tap Swap. The active call is put on hold.
Tap Merge Calls. See Conference Calls below.