China's mobile phone users topped 800 million by the end of June, said Zhang Feng, an official with the Ministry of Industry and Information Technology (MIIT), Tuesday.

The country reported 1.1 billion telephone users at the end of June, including 300 million users of fixed-line phones, Zhang said.

China's third-generation (3G) mobile phone service subscribers numbered 25.2 million at the end of June, Zhang said.

The country will invest about 120 billion yuan (17.73 billion U.S. dollars) in 3G this year, Zhang said.

The 3G services allow for video calls between 3G subscribers, and television and Internet access.