Patent ID: 6643368
Filing Date: 2003-11-04
Classification: H04Q

Abstract:
An exchange comprising:a switch for forming a speech path in accordance with an external instruction; a plural number p of interfacing means for line interfacing individually between corresponding ports of said switch and a plural number p of lines each being either subscriber lines, interior wires, incoming lines, or outgoing lines; and a plural number P of distributed call processing means for executing call processes relating to lines individually pertaining to their respective combinations, for every plural number P of combinations constituted by dividing said plural number p of interfacing means, where P is smaller than p, and for individually supplying said switch with an instruction adaptive to the call processes, wherein said plural number P of distributed call processing means have respective databases on routing results, in which piece(s) of identification information of a single or a plurality of distributed call processing means to execute a call process relating to a destination party or an outgoing line is/are registered in advance, and execute the call process by cooperating, via a communication link or an internal processing, with a distributed call processing means that is signified by individual piece(s) of identification information obtained by referring to said databases.