Samsung SWC-R640LBAXAR - Manual (Page 206)

201
Emergency Calls
This mobile device, like any wireless mobile device, operates using
radio signals, wireless and landline networks, as well as user-
programmed functions, which cannot guarantee connection in all
conditions, areas, or circumstances. Therefore, you should never rely
solely on any wireless mobile device for essential communications
(medical emergencies, for example). Before traveling in remote or
underdeveloped areas, plan an alternate method of contacting
emergency services personnel. Remember, to make or receive any
calls, the mobile device must be switched on and in a service area
with adequate signal strength.
Emergency calls may not be possible on all wireless mobile device
networks or when certain network services and/or mobile device
features are in use. Check with local service providers.
To make an emergency call:
1. If the mobile device is not on, switch it on.
2. Key in the emergency number for your present location (for
example, 911 or other official emergency number). Emergency
numbers vary by location.
3. Press the “Send” key ( ).
If certain features are in use (call blocking, for example), you may first
need to deactivate those features before you can make an emergency
call. Consult your User Manual and your local cellular service