METHOD OF ISSUING USER SERVICE CAPABILITY AND PRESENT SERVER AND COMMUNICATION SERVICE SYSTEM

摘要

A method for issuing user service capabilities and corresponding presence server (PS) and communication service system are provided. The PS collects service subscription information indicative of service capabilities of users, and notifies a user of service subscription information of a contact concerning the user according to the user's request. The provided technical solution enables the user to select an appropriate communication mode to interact with the contact according to service capabilities of the contact.