HTC 10 User Manual page 118

118 Phone calls
4. Tap Edit.
5. Edit the Country Code, IDD Prefix (International Direct Dial), NDD Prefix
(National Direct Dial), Area/City Code and National Number Length (length
of phone number).
6. Tap Save.
7. Tap Done.
Resetting the reference country to default
1. From the Home screen, tap
2. Tap Assisted Dialing Reference Country.
3. Under Reference Country, tap the bar and select the country whose settings
you want to set to default values.
4. Tap Set Default.
5. Tap Done.
Turning off Assisted dialing
1. From the Home screen, tap
2. Tap Assisted Dialing.
3. Clear the Use Assisted Dialing option.
4. Tap .
, and then tap Settings Call.
, and then tap Settings Call.