Making an emergency call
In some regions, you can make emergency calls from HTC One even if you
don't have a SIM card installed or your SIM card has been blocked.
If you don't have a network signal, you won't be able to make an
emergency call.
1.
Open the Phone app.
2.
Dial the emergency number for your locale, and then tap Call.
If you've enabled but forgotten your lock password or lock
pattern, you can still make emergency calls by tapping Emergency
call on the screen.
Phone calls
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