GSM – the Global System For Mobile Communications    

GSM's proven feature-rich, dominant digital technology and use of "smart cards" (also known as SIM cards) enable North American GSM carriers to provide thorough customer service, call privacy, and fraud prevention. Only GSM provides integrated voice, high speed data, fax, paging and short message services capabilities. In GSM networks, full digitally encrypted wireless communications enhances confidentiality of voice and data calls.

In addition, North American companies using GSM technology offer excellent voice quality. Independent laboratory and field test reports validate near wireline parity. The larger number of vendors making GSM handsets and infrastructure worldwide, offers competitive, economical ways to keep costs down and gives consumers more choices.

GPRS – Highspeed Wireless Internet Connectivity  

Introducing iStream. iStream is the fastest nationwide wireless data network and is offered by T-Mobile. It allows you to send e-mail, or access the internet, all from your phone laptop or PDA. 

About GPRS

GPRS (General Packet Radio Service) is a standardized packet-switched data service that is an extension of the GSM architecture. GPRS is what makes the Internet wireless.

GPRS uses upgraded radio base stations linked to a new network based on "packet" technology. With circuit switched networks, the user dials the required number and the network connects the call, allocating a circuit between the two parties until the call is ended. With packet technology, the user will be connected to their home carrier data services via the subscribers handset, PDA or Laptop - typically a WAP server, a company LAN, or an Internet Service Provider - and then send and receive data as required throughout the day. The GPRS network is only used when data is being transmitted, but the user retains a virtual connection to the chosen computer network throughout the day.

GPRS Benefits:

  • The user can be "always connected, always on-line" to the data network.

  • GPRS provides high-speed data transmission. Initially GPRS handsets will be capable of operating at speeds up to five times faster than on current GSM networks, and speeds will increase up to ten times faster than is currently possible in the coming months as new terminal devices are launched.

  • The network is used far more efficiently than circuit switched networks. It is only used when data is being transmitted, which will reduce the cost of mobile data.

  • GPRS is based on the Internet Protocol (IP). This provides ease of connectivity from mobile data terminals to the Internet and to IP-based Company Intranets.

 
 

 

 

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