Chinese telecom operator China Unicom has published a report, stating that by December 31, 2010, the company had opened 3G international roaming and short message services in collaboration with 195 operators in 98 countries and regions.

According to the report, China Unicom has cooperated with 487 operators in 238 countries and regions, including Hong Kong, Macau and Taiwan, in launching the 2G roaming and short message services; it has cooperated with 195 operators in 98 countries and regions, including Hong Kong, Macau and Taiwan, in launching 3G roaming and short message services; and it has cooperated with 337 operators in 173 countries and regions, including Hong Kong, Macau and Taiwan, in launching GPRS roaming services.

At the same time, China Unicom claimed that it is now the only Chinese telecom operator that can provide a video call roaming service, and it has opened this service with 22 operators in 11 countries and regions around the world.

In addition, the operator's multimedia messaging service is available at 309 operators in 122 countries and regions.

However, China Unicom also warned users of the high costs of these services. It suggests that users should find out information about the charges of these services in various countries and regions and take full advantages of the preferential policies and packages offered by the company.