subject: T-Mobile Dash, cannot do email via WiFi? - T-Mobile [print this page] T-Mobile Dash, cannot do email via WiFi? - T-Mobile
T-Mobile is a German provider, owned by Deutsche Telekom. It operates several GSM networks in Europe and the United States. T-Mobile also has financial stakes in mobile operators in Central and Eastern Europe. Globally, T-Mobile has some 150 million subscribers, making it the world's eighth largest mobile phone service provider by subscribers and the third largest multinational after the United Kingdom's Vodafone and Spain's Telefnica. T-Mobile UK has recently become part of a joint venture with France Telecom's mobile network provider, Orange U.K.; together they make the UK's largest mobile operator, called Everything Everywhere.
Based in Germany, T-Mobile is present in ten other European countries (Austria, Croatia, Czech Republic, Hungary, Macedonia, Montenegro, the Netherlands, Poland, Slovakia and the United Kingdom) as well as the United States.
In late 2005, Deutsche Telekom attempted to acquire rival mobile network operator O2, but was beaten by Spain's Telefnica.
In March 2008, the company announced its plan to acquire Siemens Wireless Modules (now known as Cinterion Wireless Modules) as part of the JOMA consortium. The Siemens Wireless Modules spin off to Cinterion Wireless Modules was concluded on 1 May 2008.
Wi-Fi (pronounced /wafa/) is a trademark of the Wi-Fi Alliance. It is not a technical term. However, the Alliance has generally enforced its use to describe only a narrow range of connectivity technologies including wireless local area network (WLAN) based on the IEEE 802.11 standards, device to device connectivity [such as Wi-Fi Peer to Peer AKA Wi-Fi Direct], and a range of technologies that support PAN, LAN and even WAN connections. Derivative terms, such as Super Wi-Fi, coined by the U.S. Federal Communications Commission (FCC) to describe proposed networking in the former UHF TV band in the US, may or may not be sanctioned by the Alliance. As of November 2010 this was very unclear.
The technical term "IEEE 802.11" has been used interchangeably with Wi-Fi, however Wi-Fi has become a superset of IEEE 802.11 over the past few years. Wi-Fi is used by over 700 million people, there are over 750,000 hotspots (places with Wi-Fi Internet connectivity) around the world, and about 800 million new Wi-Fi devices every year. Wi-Fi products that complete the Wi-Fi Alliance interoperability certification testing successfully can use the Wi-Fi CERTIFIED designation and trademark.
Not every Wi-Fi device is submitted for certification to the Wi-Fi Alliance. The lack of Wi-Fi certification does not necessarily imply a device is incompatible with Wi-Fi devices/protocols. If it is compliant or partly compatible the Wi-Fi Alliance may not object to its description as a Wi-Fi device though technically only the CERTIFIED designation carries their approval.
Wi-Fi certified and compliant devices are installed in many personal computers, video game consoles, MP3 players, smartphones, printers, digital cameras, and laptop computers.
This article focuses on the certification and approvals process and the general growth of wireless networking under the Wi-Fi Alliance certified protocols. For more on the technologies see the appropriate articles with IEEE, ANSI, IETF , W3 and ITU prefixes (acronyms for the accredited standards organizations that have created formal technology standards for the protocols by which devices communicate). Non-Wi-Fi-Alliance wireless technologies intended for fixed points such as Motorola Canopy are usually described as fixed wireless. Non-Wi-Fi-Alliance wireless technologies intended for mobile use are usually described as 3G, 4G or 5G reflecting their origins and promotion by telephone/cell companies.
Electronic mail, commonly called email or e-mail, is a method of exchanging digital messages across the Internet or other computer networks. Originally, email was transmitted directly from one user to another computer. This required both computers to be online at the same time, a la instant messaging. Today's email systems are based on a store-and-forward model. Email servers accept, forward, deliver and store messages. Users no longer need be online simultaneously and need only connect briefly, typically to an email server, for as long as it takes to send or receive messages.
An email message consists of two components, the message header, and the message body, which is the email's content. The message header contains control information, including, minimally, an originator's email address and one or more recipient addresses. Usually additional information is added, such as a subject header field.
Originally a text only (7 bit ASCII and others) communications medium, email was extended to carry multi-media content attachments, a process standardized in RFC 2045 through 2049. Collectively, these RFCs have come to be called Multipurpose Internet Mail Extensions (MIME).
The history of modern, global Internet email services reaches back to the early ARPANET. Standards for encoding email messages were proposed as early as 1973 (RFC 561). Conversion from ARPANET to the Internet in the early 1980s produced the core of the current services. An email sent in the early 1970s looks quite similar to one sent on the Internet today.
