Samsung galaxy S4 User Manual page 61

Press the Up volume key to increase the volume level
and press the Down volume key to decrease the volume
level.
– or –
Quickly add more volume to the incoming audio by
tapping the on-screen Extra volume button
From the Home screen, you can also adjust the ringer volume
using these same keys.
In-Call Options
During an active call there are several functions available by
tapping a corresponding on-screen button.
•
Hold: place the current active call on hold.
•
Add call: displays the dialer so you can call another person.
•
Keypad: displays the on-screen keypad, where you can enter
number using DTMF (Dual Tone Multi-Frequency).
•
End call: terminates the call.
•
Speaker: routes the phone's audio through either the speaker or
through the earpiece.
–
Tap Speaker to route the audio through the speaker. (You can
adjust the speaker volume using the volume keys.) The icon
turns green.
–
Tap Speaker again to use the phone's earpiece (see "Using the
Speakerphone During an Active Call" on page 51). The icon
turns grey when Speaker is not activated.
•
Mute/Unmute turn the onboard microphone either on or off.
–
Tap Mute during a call to mute the microphone. The icon turns
green.
–
Tap Mute again to unmute the microphone. The icon turns grey
when Mute is not activated.
•
Bluetooth connects to a Bluetooth headset.
–
Tap Headset during a call to activate a Bluetooth headset. The
icon turns green.
–
Tap Headset again to de-activate the Bluetooth headset. THe
icon turns grey when Bluetooth is not activated.
•
Press for more options:
–
Contacts: allows you to go to your Contact list.
–
Memo: allows you to write a memo.
–
Message: allows you to write a message during a call.
–
Settings: Opens the Call Settings menu.
Personalizing the Call Sound Setting
During a call it may be necessary to adjust the sound of the
incoming call by selecting an audio equalizer setting for the
current call.
1. From the call screen, tap .
Call Functions 49