Huawei P9 - Enabling Call Waiting

Calls and Contacts
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2 Touch > Settings .
3 Touch Call forwarding . If your phone has dual SIM support, touch Call forwarding under
Card 1 or Card 2 .
4 Select a forwarding method, enter the destination number, and then touch Enable .
When call forwarding is enabled, your phone will forward certain calls (such as unanswered calls)
to the number you specified.
Enabling call waiting
Call waiting allows you to take an incoming call when you are already in a call and switch between
the two conversations.
1 Open Dialer .
2 Touch > Settings .
3 Touch Additional settings and turn on the Call waiting switch. If your phone has dual SIM
support, touch Additional settings under Card 1 or Card 2 , and then turn on the Call
waiting switch.
When you receive an incoming call while already in a call, touch to answer the new call, and
to switch between the two calls.
Enabling do not disturb mode
Do not disturb mode allows you to work or relax in peace and quiet. Your phone will only notify
you about important calls or messages.
1 Open Settings .
2 Touch Do not disturb and turn on the Do not disturb switch.
3 Touch Define priority interruptions > Whitelist for calls and messages > to add
contacts to the whitelist.
When do not disturb mode is enabled, your phone will only ring or vibrate when chosen contacts
call or message you. Your phone will mute ringtones or vibrations for any other calls or messages.
Notifications for these can be viewed in the notification panel.
Configuring the harassment filter
The harassment filter automatically blocks calls and messages from unknown or blacklisted
sources. The blacklist is constantly updated, ensuring that you are never disturbed.
Open Phone Manager , then touch Harassment filter to configure filter rules and the
blacklist or whitelist. For more information, see Harassment filter.