The IMS/SDP Structure and Implementation of Presence Service

摘要

Nowadays in communication and network business, structure and system are independently constructed with existing IT services and new services (e.g., 3G services) without considering common functions between them. Consequently, the study of standardized Service Delivery Platform (SDP) structure and interfaces can efficiently provide the methodology of existing or new services to users and easier environment for development to service providers. Therefore in this paper, we will find solutions about the SDP structure and then describe the implementation of presence service related to the SDP.