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White Paper T630/T628
37 October 2003
Sony Ericsson Developer Support
Sony Ericsson offers developers professional tech-
nical support services. The service can be pur-
chased from the developer web portal, as part of
the Sony Ericsson Core and Core+ membership
packages or as single support queries. There are
two levels of support included in the member-
ships:.
The Basic E-mail Developer Support is an annual
support service included in the Core membership
that provides developers with all the basics to suc-
cessfully develop world-class applications for Sony
Ericsson products. Developers get access to Sony
Ericsson developer support engineers via e-mail
with same-day response, five technical support
incidents as well as the ability to purchase more.
The Priority E-mail Developer Support is an
annual support service included in the Core+ mem-
bership that equips professional developers with
everything they need to successfully develop
world-class applications for Sony Ericsson prod-
ucts. Developers get priority access to Sony Erics-
son developer support engineers via e-mail with
fast response times and up to 50 technical support
incidents.
Infrared transceiver
Infrared communication creates a data link
between two communications devices through an
infrared beam of light. On the T630/T628, this link
is used to connect with desktop computers, PDAs,
Sony Ericsson handheld computers, laptop PCs,
other phones and other hardware supporting the
standard. The Infrared Data Association (IrDA) has
set the hardware and software standards that form
the infrared communication links. The T630/T628
complies with the IrMC 1.1 specification, which
defines how mobile telephony and communication
devices can exchange information. In the T630/
T628, the IrMC 1.1 specification is also used for
communication via a cable.
Key benefits of using the T630/T628 with its built-in
infrared transceiver:
• True wireless communication
• Low power consumption
• Secure data transmission with the IrDA DATA
standard
• Ability to send and receive e-mail and data on
the connected PC/PDA
• Ability to connect to the Internet or intranet/LAN
from the connected PC/PDA
• Ability to manage the phone book from a PC
• Exchange of business cards and calendar
events with vCard/vCalendar compatible
devices
• Exchange of ring signals between compatible
phones
Connection via infrared
IrDA is a point-to-point communication link
between two infrared ports. The infrared beam has
to be directed towards the target infrared port and
as long as the two infrared ports are within sight
and range, the devices exchange data. For optimal
performance, place the T630/T628 within 20cm
from the infrared port on the PC/PDA, or other
phone. An advantage of the necessary proximity of
devices is reduced risk of transmitting data to other
nearby devices. An infrared link is a serial connec-
tion, which means that data bits are sent one after
another in a long stream. The IrDA–SIR Data Link
Standard is a protocol that makes transmission of
data faultless.