Outgoing call setup control method and incoming call setup control method for implementing multiple subscriber number service in distributed control switching system

摘要

The present invention relates to an outgoing call setup control method and an incoming call setup control method for implementing a multi-subscriber number service, wherein the distributed control switching system provides a digital subscriber with a MSN service procedure to operate a digital subscriber. In order to provide an outgoing call setup control method and an incoming call setup control method for achieving the effect, the first step of accessing the telephone number database using the group number of the multiple subscriber number service and the telephone number information of the calling number information element ( 201 to 206); And a second step (207 to 209) for changing the calling number to the calling number if the individual number is not a group billing, and searching the telephone number database using the group number and the called number information of the multiple subscriber number service. First steps 301-306; And a second step (307 to 311) for configuring the called number information element as the phone number information, if the individual number is used, up to eight terminals can be connected, and the effect of operating a private exchange can be obtained. There is an effect that it is possible to set up and forward calls to individual subscriber numbers, including group billing and billing to individual numbers.