Bearer type characteristics, Gprs access

broad range of wireless networks.

Existing services can be adapted to WAP. The necessary binary encoding is handled by a WAP Gateway, allowing HTML-based services to be viewed on the WAP browser of the T226. An XHTML page can be viewed in both the WAP browser and in any standard Web browser.

Improve productivity

A business can use a WAP gateway to provide a secure connection to its corporate network, improving internal communication flow by making information available to mobile as well as office users.

The WAP profiles

A WAP profile holds network settings and user identification, allowing the user to switch easily between corporate services and WAP services on the Internet, simply by switching WAP profile.

The T226 has dynamic WAP profile handling, which means that the user can add, edit and delete WAP profiles. The T226 has a maximum of 5 WAP profiles.

During WAP browsing, the options button on the T226 gives the user immediate access to a dynamic option menu for WAP services, similar to a right mouse click in PC programs.

Bearer type characteristics

The T226 accesses WAP services over IP. IP can be provided either over GSM Data or GPRS, depending on network services.

Typical differences which distinguish the bearer types are listed below.

GPRS access

•The connection is maintained “constantly”, with data transmitted in packets, and transmission capacity being used by the application in use on an as-needed basis.

•Higher transmission speed than with GSM Data or SMS access.

•Pricing of GPRS can be dependent on the actual use of bandwidth, which means the user is charged for the volume of data transmitted, rather than the duration of the connection.

•When transmitting large amounts of data, band- width can be increased automatically to allow faster transmission speed.

•Ideal for complex pull services, browsing, data transfer, provisioning, pager services, messag-

T226 White Paper

July 2003 (Rev C)

ing services, info services, push initiations.

GSM data access

•Circuit connection of data calls, which means that the phone is connected during the entire WAP session.

•Pricing is comparable to that of data calls in the network.

Gateway characteristics

A WAP Gateway provides Internet/intranet as well as WAP services to the mobile browser. A Gateway is identified by an IP number, depending on access type.

End-to-end gateway navigation

The WAP 2.0 supports E2E (End-to-End) Gateway navigation, making it possible for example for a bank to redirect its clients from the Internet gateway to its own gateway.

Security using WAP

For certain WAP services, such as banking services, a secure connection between the phone and WAP gateway is necessary. An icon in the display of the T226 indicates when a secure connection is in use.

The T226 is based on the WAP 1.2.1 specification suite, in which security functionality is specified by a technology called Wireless Transport Layer Security (WTLS). The WAP protocols for handling connection, transport and security are structured in layers, with security handled by the WTLS layer, operating above the transport protocol layer. WTLS classes define the levels of security for a WTLS connection:

•WTLS class 1 – encryption with no authentica- tion.

•WTLS class 2 – encryption with server authen- tication.

•WTLS class 3 – encryption with both server and client authentication.

T226 specifications

The Sony Ericsson T226 was a compact and stylish mobile phone introduced in the early 2000s, showcasing the innovative spirit of the collaboration between Sony and Ericsson. Renowned for its user-friendly design and functional capabilities, the T226 made a lasting impression in the market, appealing to a wide audience seeking an efficient communication tool.

One of the defining features of the Sony Ericsson T226 was its sleek and lightweight form factor. Weighing just 80 grams and measuring 100 x 44 x 19 mm, this phone was incredibly portable, making it easy to carry and navigate. Its vibrant, 256-color display offered a resolution of 128 x 160 pixels, allowing for clear visibility of text and graphics, which was quite impressive for its time.

The T226 was equipped with essential features such as SMS and MMS messaging, enabling users to send text and multimedia messages. This was a key aspect of mobile communication during the early 2000s, and the T226 catered to this demand. Additionally, it supported polyphonic ringtones, offering users the ability to personalize their mobile experience with customized sounds.

For connectivity, the Sony Ericsson T226 featured GPRS support, facilitating data transfer for web browsing and email access. While web capabilities were limited compared to modern standards, the inclusion of GPRS was a significant advancement for mobile technology of that era. The phone also provided a basic suite of entertainment options, including a selection of pre-installed games, which added to its appeal for younger users.

In terms of battery life, the T226 was powered by a standard lithium-ion battery, providing up to 400 hours of standby time and around 9 hours of talk time. This longevity made it a reliable choice for those who needed consistent communication throughout the day.

The design of the T226 was enhanced by its colorful exterior options, which included vibrant hues appealing to a youthful market. This device not only fulfilled the need for communication but also served as a fashion accessory, reflecting the user's personality.

In conclusion, the Sony Ericsson T226 was a noteworthy mobile phone that combined style, functionality, and user-friendly features. Its compact design, messaging capabilities, and battery efficiency made it a popular choice during the era of early mobile communications. As one of the many successful products from the Sony Ericsson partnership, the T226 remains a nostalgic representation of early mobile technology.

Sony Ericsson T226 manual Bearer type characteristics, Gateway characteristics, Security using WAP

Models: T226