Calls And Contacts - Huawei P8 Faq

5.1 Can I activate quick calling if I touch and hold the
volume button on my Bluetooth headset?
Yes, the result is the same as when you touch and hold the call button on your Bluetooth
headset.
5.2 Why can't I use quick dialing to make a call when I
have a SIM card inserted?
1. Please make sure the contact is in your contact list.
2. Please make sure you spoke the contact name correctly.
5.3 Why can't I make phone calls even though I have a 3G
data signal?
Due to the instability of 3G mobile networks, only phones using the GSM network are able to
use voice calling services.
5.4 Why does 4G disconnect when I make calls?
At present, 4G supports data services, but not voice calls. When you make a call, your phone
will switch from 4G back to a 3G or 2G network. If it reverts to a 2G network, you will not be
able to use data services during the call.
5

Calls and contacts