Huawei P9 Lite - Manual (Page 82)

Calls and Contacts
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Call settings
Enabling call forwarding
If you are unavailable to take a call, you can configure your phone to forward calls to
another number.
1 Open Dialer.
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.