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MAP defines a set of features and procedures to exchange messages between devices. It is especially tailored for the automotive Hands-Free use case where an onboard terminal device (typically a Car-Kit installed in the car) takes advantage of the messaging capability of a communication device (typically a mobile phone). This profile can however also be used for other use cases that require the exchange of messages between two devices.

OBEX is a transfer protocol that defines data objects and a communication protocol two devices can use to exchange those objects. OBEX enables applications to work over the Bluetooth protocol stack as well as the IrDA stack. For Bluetooth enabled devices, only connection-oriented OBEX is supported. Three application profiles have been developed using OBEX which include SYNC, FTP and OPP.

The initial phase of the connection procedure where a device transmits a train of page messages until a response is received from the target device or a timeout occurs.

A Bluetooth enabled device that is carrying out the page procedure.

The process of establishing a new relationship between two Bluetooth enabled devices. During this process a link key is exchanged (either before connection establishment was requested or during connecting phase).

A device that is concurrently a member of more than one piconet, which it achieves using time division multiplexing (TDM) to interleave its activity on each piconet physical channel.

PAN describes how two or more Bluetooth enabled devices can form an ad-hoc network and how the same mechanism can be used to access a remote network through a network access point. The profile roles include the network access point, group ad-hoc network and personal area network user.

Characterized by synchronized occupancy of a sequence of RF carriers by one or more devices. A number of physical channel types exist with characteristics defined for their different purposes.

A collection of devices occupying a shared physical channel where one of the devices is the piconet master and the remaining devices are connected to it.

A channel that is divided into time slots in which each slot is related to an RF hop frequency. Consecutive hops normally correspond to different RF hop frequencies and occur at a standard hop rate of 1600 hops/s. These consecutive hops follow a pseudo-random hopping sequence, hopping through a 79 RF channel set.

A user-friendly number that can be used to authenticate connections to a device before paring has taken place.

Two or more piconets that include one or more devices acting as PMPs.

Procedures for querying and browsing for services offered by or through another Bluetooth enabled device.

A protocol that uses an L2CAP channel for transporting PDUs.

SAP allows devices such as car phones with built in GSM transceivers to connect to a SIM card in a Bluetooth enabled phone. Therefore the car phone itself does not require a separate SIM card.