Placing Emergency Calls - Blackberry 6750 Getting Started Manual

Note: The Lock screen shows your contact information (if you have
typed it on the Owner screen). If you have enabled a password, type it
and click the trackwheel to resume using your handheld. If you have not
enabled a password, double-click the trackwheel to resume using your
handheld. If you do not want the Lock screen to appear, you must
disable your password in the Options application, on the Security
screen.
If you receive a phone call while your handheld is locked, you can still
answer the call. While connected to the call, click the trackwheel to
either enter your password and unlock the handheld or end the call.

Placing emergency calls

You can place calls to emergency numbers at any time, even if your
handheld has a password set.
Depending on your handheld version or service provider, your
handheld might be enabled with Assisted Global Positioning
System (A-GPS) support. If your handheld is enabled with A-GPS
support, when you place an emergency call from your handheld, or
Getting Started Guide
Lock screen with a password enabled
Placing emergency calls
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