1. China Unicom provides comprehensive basic telecommunication services, such as mobile communication and fixed telephone.
2. In addition to basic telecommunications services, China Unicom also provides various value-added telecommunications services, such as SMS, MMS, WAP and other services.
3. China Unicom provides users with broadband Internet access services, including ADSL, optical fiber and other access modes.
4. China Unicom also provides system integration services related to communication and information services to meet customers' needs in network construction and system integration.