Huawei P30 User Guide - Page 63
Use VoLTE to Make Calls
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Apps If two SIM cards have been inserted into your device, configure the ringtone separately for SIM 1 and SIM 2. Set a Music Ringtone 1 Go to Phone > Phone ringtone. > Settings > Ringtone or Settings > Sounds & vibration > 2 Select a system ringtone, or touch Music on device to select a local song as the ringtone. Set a Video Ringtone Set a video as the ringtone for incoming calls. 1 Go to Phone > Phone ringtone. > Settings > Ringtone or Settings > Sounds & vibration > 2 Touch Video ringtones and select a video to preview the effect for incoming calls. 3 Touch Apply to set the video as the ringtone. Set a Ringtone for a Contact 1 Open Phone, touch the Contacts tab at the bottom of the screen, then select the contact you want to set a ringtone for. 2 On the contact details screen, touch Ringtone and select a ringtone. Use VoLTE to Make Calls Voice over LTE (VoLTE) is an IP-based data transmission technology that delivers both call and data services over a 4G network. Once VoLTE is enabled, you can make a call while accessing the Internet. If your device supports dual SIM dual VoLTE, you can receive an incoming call on a SIM card while the other SIM card is being used for a call. VoLTE also provides you with a faster call connection time and higher quality voice and video calls. Enable VoLTE 1 Contact your mobile carrier to activate the 4G and VoLTE functions for your SIM card. If both the primary and secondary SIM card trays of a dual-SIM device support 4G and VoLTE, 4G and VoLTE can be enabled for both SIM cards. 2 Go to Settings > Mobile network > Mobile data. In the network settings area of SIM 1 or SIM 2, turn on the VoLTE calls switch. • This feature may vary depending on your carrier. • The 4G network is used as an example here. If your device supports 5G, the operations are the same. • 5G services are only available in some countries and regions. 59