As an interim step from 2G to 3G, 2.5G saw some of the advances inherent in 3G networks including packet-switched systems.
Dịka nzọụkwụ nkeji site na 2G ruo 3G, 2.5G hụrụ ụfọdụ n'ime ọganihu ndị dị na netwọk 3G tinyere usoro ndị gbanyere akpa.