User manual

MPTP | MPTP commands 6
2. OVERVIEW OF THE SYSTEM
MPTP messaging takes place in the GSM network using specially formatted SMS messages. This chapter
describes the roles of the actors in such MPTP messaging exchange and gives an overview of some
typical scenarios involving telematics messaging.
A more detailed and technical description of the format, structure and use of MPTP commands is given in
subsequent chapters.
2.1. Actors
MPTP messaging always takes place between two parties. The typical actors in such exchange are a
Control Centre and a Mobile Telematics Terminal.
2.1.1. Control Centre
A Control Centre has capabilities for monitoring and controlling one or more Mobile Telematics Terminals.
Such remote controlling functionality includes requesting and receiving position updates from terminals,
creating navigation objects such as waypoints and routes on them, configuring the terminals’ setup, and
receiving and distributing status information.
A Control Centre is typically a PC equipped with hardware and software (such as Benefon In Charge) for
sending, receiving and processing MPTP messages. An MPTP-enabled mobile instrument such as
Benefon Esc! also features functions for acting as a Control Centre with less extensive capabilities.
In subsequent chapters, the Control Centre will often be referred to as CC.
2.1.2. Mobile Telematics Terminal
A Mobile Telematics Terminal is a positioning-capable mobile instrument with functionality for receiving
and responding to MPTP messages sent by the Control Centre. Its typical uses include sending position
information (e.g. when it is tracked) and sending status messages.
Typical Mobile Telematics Terminals include professional work management instruments such as Benefon
Track, navigation instruments such as Benefon Esc!, and asset tracking instruments such as Benefon
TrackKeeper.
Depending on situation, a Mobile Telematics Terminal may sometimes also act as a Control Centre. An
example of such a case is when a Benefon Esc! is used for both tracking other terminals (in which case it
acts as a Control Centre) as well as responding to requests from them (in which case it acts as a Mobile
Telematics Terminal).
In subsequent chapters, the Mobile Telematics Terminal will often be referred to as MTT.