Planet BT-200U, Руководство пользователя

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Appendix C - Specifications
19
4.6 FIND A SERVICE
The process of determining the services that a device provides is called Service Dis-
covery.
To initiate a Service Discovery, in the Folders pane of My Bluetooth Places, right-click
a device name and select Discover Available Services from the shortcut menu.
Bluetooth services are those things that this computer can do for remote Bluetooth
devices. For example, if this computer allows a remote Bluetooth device to send a fax
using a fax modem that is physically attached to this computer, then this computer is
providing the Bluetooth fax service.
Some services are hardware dependant; this computer cannot provide the fax service
unless it has a physical fax modem, for example.
Some Bluetooth services use virtual
“
hardware.
”
The Bluetooth Serial Port service, for
example, does not use a physical port on this computer. Instead, it creates virtual
serial ports that Windows applications can see and use as if they were actual physical
ports.
Each Bluetooth service that this computer is capable of providing can be started auto-
matically when Bluetooth starts. Each service can be setup to require security
measures before allowing a remote Bluetooth device to connect.
Bluetooth services require a Bluetooth application on the remote device; services and
applications usually have coinciding names; i.e., there is a Bluetooth Fax Service and a
Bluetooth Fax Application.
The services supported by Bluetooth are:
l Bluetooth Serial Port
—
a wireless connection between two devices. This
connection can be used by applications as though a physical serial cable
connected the devices.
l
Dial-up Networking
—
allows a device to use a modem that is physically at-
tached to another Bluetooth device.
l Fax
—
allows a device to send a fax using a remote Bluetooth cell phone,
modem, or computer.
l File Transfer
—
allows a device to perform file system operations on another
Bluetooth device; browse, open, copy, etc.
l Headset
—
allows a Bluetooth headset to be used as the audio input/output
mechanism for another Bluetooth device, such as a computer or cell phone.
l PIM Item Transfer
—
allows two Bluetooth devices to exchange Personal In-
formation Manager data such as business cards, calendar items, email
messages, and notes.
l PIM Synchronization
—
allows two Bluetooth devices to synchronize Per-
sonal Information Manager data.
l Network Access
—
allows a device to access a Local Area Network via a
second Bluetooth device that is physically connected to the network or al-
lows a remote device to become part of an ad hoc network provided by the
Bluetooth server.
l Audio Gateway
—
allows the microphone/speakers on Bluetooth device
(typically a computer) to be used as the audio input/output mechanism for a
remote Bluetooth device, such as a cell phone.
All Bluetooth servers do not necessarily provide all of these services. For example,
network gateways may provide only the Network Access service.