BTC offers the following types of WAN network solutions for Operators and Very Large Enterprises
GSM (Global System for Mobile communication) is the most commonly used mobile telephone system throughout the world. It is primarily used for voice communication, and is defined as a second-generation technology (GSM can, however, also transfer data and enable Internet use from a laptop via a GSM mobile telephone. Short text messages can also be sent and received with a mobile telephone, using SMS (Short Message Service), and it is also possible to send images and video clips via MMS (Multimedia Messaging Service).
General Packet Radio Services (GPRS) is a mobile telephone technology for sending and receiving data. It runs on a GSM infrastructure, meaning that existing GSM operators can upgrade their infrastructure to carry GPRS transmissions. GPRS enables surfing the Internet from a laptop PC via a GPRS mobile telephone. It is 12 times as fast as GSM. GPRS is one of the 2.5-generation (2.5G) technologies.
EDGE (Enhanced Data Global Evolution) is an extension of GSM. EDGE gives the mobile telephone user access to increased bandwidth and multimedia services, such as video clips. From the point of view of the operator, the advantage of EDGE is that this technology allows the existing GSM infrastructure to be expanded to EDGE, achieving data transfer speeds almost as high as those of UMTS without the need to buy a UMTS license or build a completely new infrastructure.
Universal Mobile Telecommunications System (UMTS) is a third generation standard with a data capacity of up to 2 Mbit/s, 35 times faster than an ordinary 56k modem and standard telephone line. It is based on the world’s most frequently used mobile telephone standard, GSM. In various countries, several mobile operators have paid substantial amounts for UMTS licenses. These operators hope that UMTS will enable them to launch a range of new interactive multimedia-based services, such as video conferencing, video on demand, and online route directions.
TD-SCDMA stands for Time Division – Synchronous Code Division Multiple Access. TD-SCDMA is a third generation mobile telephone standard developed by CATT (China Academy of Telecommunications Technology) in collaboration with Dating and Siemens. TD-SCDMA enables surfing the Internet at a speed of up to 2 Mbit/s, or 35 times faster than an ordinary 56k modem and telephone line link. It also allows supremely efficient use of the infrastructure.