A method of controlling a call using ATM (ATM) capability information in an ATM exchange

摘要

The present invention relates to a call control method for controlling a call using ATM transfer capability information in an ATM switch, and more particularly, to a call control method for controlling a call service capability In order to provide a call control method that can maximize the use of network resources even in the case of network congestion by first connecting the call that maximizes the utilization of the network resource, when the network congestion occurs, the remaining bandwidth information is received, A first step (8-12) of checking bandwidth and ATM information transfer capability information requested by the call received during the call; A second step (13, 15, 19, 23) for determining whether the service is an Unspecified Bit Rate (UBR) service, an ABR (Available Bit Rate) service, a CBR (Constant Bit Rate) service and a VBR (Variable Bit Rate) service; And a third step (14, 16 to 18, 20 to 22) for performing call processing according to the determination result of the second step (13, 15, 19, 23) There is an effect that can be maximized.