Patent ID: 6522660
Filing Date: 2003-02-18
Classification: H04M

Abstract:
A system for use in an ISDN network, which controls reservation of data channels to be used for automatic distribution of incoming calls, comprising:(a) an originator-side channel reservation controller comprising channel allocation means for determining the number of data channels to be reserved for a specific group of subscribers who may use the data channels, reservation request transmission means for making a provisional reservation for as many data channels as determined by said channel allocation means and transmitting a reservation request message to request reservation of the data channels, and originator-side reservation means for establishing channel reservation on the side of call originators by securing the data channels for exclusive use by the specific group of subscribers, in response to a channel reservation acknowledgement message; and (b) a recipient-side channel reservation controller linked to said originator-side channel reservation controller through the ISDN network, comprising recipient-side reservation means for establishing channel reservation on the side of call recipients by securing the data channels for exclusive use by the specific group of subscribers, in response to the reservation request message sent from said reservation request transmission means, and channel reservation acknowledgement means for transmitting the channel reservation acknowledgement message to said originator-side reservation means to report a result status of the channel reservation made by said recipient-side reservation means.