What is the secretary desk business of China Unicom?

China Unicom's secretarial service is a general term for providing value-added secretarial services to mobile phone customers, such as leak reminder, manual secretary, manual short message and manual information customization. At present, the main functions are: missed call reminder, unified address book, manual answering, number change notification, voice mail and other functions. Users need to set up call forwarding (**62* area code 10 198#) to complete the opening of related functions after handling Unicom secretary business, and the consultation telephone number can be transferred to Unicom secretary through 1 14.