Wireless 6 - 11
authenticate the pairing devices. Also worthy of note is the limited range and fast frequency hopping of the
Bluetooth radios that makes long-distance eavesdropping difficult.
Recommendations are:
• Perform pairing in a secure environment
• Keep PIN codes private and do not store the PIN codes in the device
• Implement application-level security.
Bluetooth Profiles
The device supports the following Bluetooth services:
• Service Discovery Protocol (SDP) - Handles the search for known and specific services as well as general
services.
• Serial Port Profile (SPP) - Allows use of RFCOMM protocol to emulate serial cable connection between two
Bluetooth peer devices. For example, connecting the device to a printer.
• Object Push Profile (OPP) - Allows the device to push and pull objects to and from a push server.
• Advanced Audio Distribution Profile (A2DP) - Allows the device to stream stereo-quality audio to a wireless
headset or wireless stereo speakers.
• Audio/Video Remote Control Profile (AVRCP) - Allows the device to control A/V equipment to which a user
has access. It may be used in concert with A2DP.
• Personal Area Network (PAN) - Allows the use of Bluetooth Network Encapsulation Protocol to provide L3
networking capabilities over a Bluetooth link. Only PANU role is supported.
• Human Interface Device Profile (HID) - Allows Bluetooth keyboards, pointing devices, gaming devices and
remote monitoring devices to connect to the device.
• Headset Profile (HSP) - Allows a hands-free device, such as a Bluetooth headset, to place and receive calls
on the device.
• Hands-Free Profile (HFP) - Allows car hands-free kits to communicate with the device in the car.
• Out of Band (OOB) - Allows exchange of information used in the pairing process. Pairing is completed using
the Bluetooth radio, but requires information from the OOB mechanism. Using OOB with NFC enables
pairing when devices simply get close, rather than requiring a lengthy discovery process.
• Phone Book Access Profile (PBAP) - Allows exchange of Phone Book Objects between a car kit and a
mobile device to allow the car kit to display the name of the incoming caller; allow the car kit to download the
phone book so the user can initiate a call from the car display.
• Object Push Profile (OPP) - Allows the TC70x/TC75x to push and pull objects to and from a push server.
• Symbol Serial Interface Profile (SSI) - Allows for communication with RS507 Bluetooth Imager.
Bluetooth Power States
The Bluetooth radio is off by default.
• Suspend - When the TC70x/TC75x goes into suspend mode, the Bluetooth radio stays on.
• Airplane Mode - When the TC70x/TC75x is placed in Airplane Mode, the Bluetooth radio turns off. When
Airplane mode is disabled, the Bluetooth radio returns to the prior state. When in Airplane Mode, the
Bluetooth radio can be turned back on if desired.