CAT B15 Smartphone User Manual
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1. On the Settings screen, touch Display > Sleep.
2. Select the duration you want the screen to be illuminated.
Auto-rotate screen
Check this box to enable the display to rotate when you turn the phone between landscape and
portrait.
Setting Phone Ringtone
Turning On Silent Mode
On the Settings screen, touch Audio profiles > Silent to enable the silent mode. Then all sounds
except media and alarms are silenced.
Adjusting the Ringtone Volume
You can adjust the ringer volume when you are on the Home screen or any application screens
(except during a call or when playing music or videos). Press the Volume keys to adjust the
ringer volume to your desired level. You can also adjust the ringer volume on the settings
screen.
1. On the Settings screen, touch Audio profiles > General > Volumes.
2. Drag the slider left to make the volume softer, or right to make it louder.
3. Touch OK to save the adjustment.
Changing the Phone Ringtone
1. On the Settings screen, touch Audio profiles > General > Voice call ringtone.
2. Touch the ringtone you want to use, and then touch OK. The ringtone plays when selected.
Setting Your Phone to Vibrate for Incoming Calls
1. On the Settings screen, touch Audio profiles > General.
2. Select the Vibrate check box to enable your phone to vibrate for incoming calls.
Setting Phone Services
Set up the Default Network
Your mobile phone supports dual-SIM technology which allows you to switch between two
network operators simultaneously.
1. On the Settings screen, touch SIM management.
2. In DEFAULT SIM, touch Voice call, Video call, Messaging, or Data connection and then select
the network that you want to use for data connection.
