Tap Keypad and dial the number, then tap Call. Or if iPhone is locked with a passcode
(see page 97), tap Emergency Call, then dial the number.
Note: You should not rely on wireless devices for essential communications, such as
medical emergencies. Use of any cellular phone to call emergency services may not
work in all locations. Emergency numbers and services vary by region, and sometimes
an emergency call cannot be placed due to network availability or environmental
interference. Some cellular networks may not accept an emergency call from iPhone if
it does not have a SIM, the SIM is PIN-locked, or if you have not activated your iPhone.