2.5G is a generation of technology which is
arrived after 2G technology and
before 3G technology. It is an
extension of 2G technology that means an advantages are added to 2G
technology.
- 2G technology is about digital encryption of phone
conversations.
- In this technology text message services is introduced.
- The bandwidth is increased than 1G technology.
- And the data speed is introduced in 2G which supports only for
voice services and text messages.
After 2G developed, the 2.5G technology is evolved which brings
some new features to the 2G technology. This 2.5G technology is a
middle technology of 2G and 3G.. This 2.5G technology is an
extension of new features to the existing 2G technology. The
Technologies arrived in 2.5G are following as :
- The new feature of 2.5G technology provides the service like
sending pictures and short videos through multimedia messages
(MMS).
- It increases the data speed more than the 2G technology
provide.
- The signals bandwidth is also increased to support more
users.
- 2.5G technology supports web browsing but it is slower.
- In 2.5G technology , GPRS is introduced which means General
Packet Radio Service which is a network used for communication.
This network supports high speed of data transmission.
- In this 2.5G technology, packet-switched network is introduced
to send multimedia content from one mobile to other mobile.
Therefore, 2.5G Technologies as defined above are used in
cellular communications.