Open  Phone and touch   to hide the dialpad. You can now perform one of the following:
l Delete a single recor
d: Touch and hold an entry, then touch Delete entry.
l Delete multiple records: Go to 
 > Delete multiple entries, select the entries you want to
delete or Select all
, then touch 
.
Set Up Video Ringtones
If you ar
e bored with traditional incoming call ringtones, you can set a video as your call ringtone.
Open 
Phone, go to   > Settings > Ringtones & vibration
 > Ringtone, touch Video
ringtones, and select a video.
Use International Roaming
When you travel abroad for work or a holiday, you can make calls when your Phone is roaming
without having to dial the country code.
1 Contact your mobile carrier to enable the international toll or international roaming service.
2 Open 
Phone or  Contacts to make a call.
Enable V
oLTE to Enjoy HD Calls
l Some carriers may not support this feature.
l Only dual-
SIM phones support both SIM card slots enabling 4G, VoLTE, and VoWiFi.
Open 
Settings, and go to Wir
eless & networks > Mobile network. In the settings section for
SIM 1 or 2 (if supported by your carrier network), you can:
l Enable 4G: Turn on 4G. The 4G switch may be unavailable for your device due to your carrier's
settings. This indicates that the 4G network is enabled by default.
l Enable VoLTE calling: Turn on VoLTE HD calls.
l Enable Wi-Fi calling: Turn on Wi-Fi calling.
After the setting is complete, select the contact you want to call and touch 
 to make a video call.
You can also touch   on the screen during a voice call to switch to a video call.
Dialing
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