Abstract: Parlay MMCCS (Multi Media Call Control Services) APIs based on SIP is essential for the implementation of Parlay CC APIs. This paper first proposes an implementation model of Parlay MMCCS APIs based on SIP, then presents a mapping between SIP and MMCCS APIs as far as methods and parameters are concerned, illustrates corresponding relationships between different components of SIP and MMCCS APIs by the means of an application collaboration diagram, and finally presents an application using Java codes as well as some SIP messages. The application shows that a majority of MMCCS APIs based on SIP can be implemented and therefore verifies our mapping between MMCCS APIs and SIP. 12 Refs. In English.

Key words: SIP; parlay; MMCCS; API