Patent ID: 8005942

Claim:
An integrated presence management system comprising: a plurality of application servers each including an input-output interface, a CPU, and a memory storing application programs; a terminal including an input-output interface, a CPU, and a memory storing a plurality of applications respectively corresponding to the plurality of application servers; and a presence server including an input-output interface, a CPU, and a memory storing presence information of the terminal on said plurality of applications, where said plurality of application are grouped, wherein, the presence server manages said presence information of the terminal on said plurality of applications linked with a group information in which said plurality of applications belongs, and when receiving presence information registration of the terminal on one application of the plurality of applications from the terminal, the presence server identifies group information in which said one application belongs, and synchronizes presence information of the terminal on at least an another application of said plurality of application linked to the identified group information with that of said one application, wherein the memory of the presence server stores an application type table that stores application IDs indicating the respective types of the plurality of applications and a group ID indicating the group of the plurality of applications, and a presence information table that stores presence information on each application, wherein a plurality of applications belonging to the same group are a plurality of applications that cannot be used at the same time.