Khác biệt giữa bản sửa đổi của “2.5G”

3G is now the third generation of mobile phone systems. They provide both a [[Packet switching|packet-switched]] and a circuit-switched domain from the beginning. It requires a new access network, different from that already available in 2G systems. Due to cost and complexity, rollout of 3G has been somewhat slower than anticipated.

 

* [[camera phone]]

 

 

[[cs:2.5G]]

[[it:2.5G]]