DEVICE, METHOD AND SYSTEM FOR PROVIDING COMMUNICATION CONFERENCE SERVICE IN MULTI-LEG COMMUNICATION SESSION

摘要

PROBLEM TO BE SOLVED: To provide a system that provides a communication conference service in a multi-leg communication session. SOLUTION: An system embodiment has a database and a switching center. The database stores a plurality of secondary directory numbers and conference parameters corresponding to primary directory numbers in a memory. The switching center has an interface that receives an incoming call leg to designate a primary directory number and discriminates whether or not the primary directory number and a plurality of the secondary directory numbers corresponding to the primary directory number are configured for a conference mode. When the interface is configured for the conference mode, the switching center has instructions to conduct processing and routing of each call leg corresponding to each of the secondary directory numbers among a plurality of the secondary directory numbers to form a plurality of call legs, to monitor a response of a plurality of the call legs and to connect the call leg receiving a response among a plurality of the call legs to an incoming call leg of the multi-leg communication conference session.