Gprs, Hscsd And Csd Connections; Using The P900 As A Modem - Sony Ericsson P900 White Paper

GPRS, HSCSD and CSD Connections

P900/P908 White Paper, December 2003
GPRS, HSCSD and CSD Connections
The introduction of GPRS (General Packet Radio Services) is one of the key steps in the evolution of today's
GSM networks for enhancing the capabilities of data communication. Data traffic is increasing enormously
(over both wired and wireless networks), with the growth in demand for Internet access and services
paralleling that for mobile communications. Users want access to the Internet while they are away from their
offices and homes, and surveys have found that the vast majority of business professionals want the ability
to send and receive E-Mail, browse the Web and transmit text and graphics on a portable device. That is
why the main applications driving Mobile Internet development are Email clients and Web browsers.
The demand for high-speed Internet access will be the key driver for coming generations of wireless
services, and GPRS can deliver the necessary speed. GPRS allows innovative services to be created,
enabling new and previously inaccessible market segments to be addressed and increasing customer
loyalty.
GPRS applications can be developed for both horizontal and vertical markets. Vertical applications are
specific, including those for operations such as reaching police and emergency, taxi, delivery or automated
services (vending machines, supervision, vehicle tracking). Horizontal applications are more generic and
include those for Internet access, Email, messaging, e-commerce and entertainment.
GPRS is able to take advantage of the global coverage of existing GSM networks. Applications developed
for GPRS can be deployed on a large scale and can reap the associated benefits. GPRS also provides a
medium for secure connections to private networks, banking and financial services.
The P900 supports connection to the Internet, company intranets and mobile operator WAP services over
GPRS, HSCSD and CSD. A typical configuration will be to use GPRS for a continuous connection to the net.
With GPRS, the P900 sends data in 'packets' at a very high speed. The P900 remains connected to the
network at all times, using transmission capacity only when data are sent or received. This means that the
Email client and the browser is always available for immediate use. Third Party applications such as instant
messaging clients will also benefit from a GPRS 'always on' connection.

Using the P900 as a Modem

The P900 contains a complete GSM/GPRS modem enabling it to be used to connect external devices such
as laptop PCs to the Internet or corporate intranet. The P900 is connected to the laptop using infrared,
Bluetooth or cable, and will connect over the air using GPRS, HSCSD or CSD. To use this facility for
Infrared or Cable, set 'Status' for the chosen connection to 'Modem' in the Control Panel.
The P900 appears to the laptop like a normal modem, having an AT command set compatible with industry
de facto extensions and ETSI 07.07. Note that SMS and SMSCB are not supported over this channel. A
Windows modem driver file is supplied on the PC Suite CD-ROM.
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