Nokia V-6016i User Manual page 21

Note:
Display indicators help you manage your roaming charges by letting you
know when you're off the Sprint Nationwide PCS Network and whether
you're operating in digital or analog mode. (For more information, see
Section 2D: "Controlling Your Roaming Experience" on page 53.)
Section 2A: Your Sprint PCS Phone - The Basics
the stopwatch is running.
the countdown timer is running.
a TTY device is operating.
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