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T|X Handheld 288
CHAPTER 15 Making Bluetooth
®
Wireless Connections
What is device discovery?
Discovery is the process in which your handheld searches for other Bluetooth devices within its
range (approximately thirty feet). As each device is discovered, it shows up in your discovery
results. After you find the devices you are looking for, you can select the devices with which
you want to connect.
The Bluetooth application on your handheld can be turned on and off, and the application has a
Discoverable setting that can also be turned on and off. The following is a description of setting
combinations and the resulting discovery states:
Bluetooth Off: When the Bluetooth setting is off, other users cannot discover your handheld.
This is similar to locking your door with a dead bolt and a security chain, and disabling the
doorbell. When Bluetooth application is off, you cannot access the Discoverable setting.
Bluetooth On and Discoverable No: When your handheld and Bluetooth application are on and
the Discoverable setting is set to No, you can receive connections only from devices with which
you have previously formed a partnership with a trusted connection. This is similar to locking your
door with a dead bolt and disabling the doorbell, but any friends who already have the key can
enter. By default, the Discoverable setting is enabled when the Bluetooth application is on.
Bluetooth On and Discoverable Yes: When your handheld is on, Bluetooth application is on, and
the Discoverable setting is set to Yes, you can receive connections from any Bluetooth device. You
are automatically connected with devices with which you have previously communicated, but you
can refuse invitations to connect with unrecognized devices. This is similar to locking your front
door with a dead bolt and enabling the doorbell. Friends who already have the key can enter
freely, and if someone without a key rings the bell to request a connection, you can choose to
open the door or ignore the request.