Patent ID: 6081841
Filing Date: 2000-06-27
Classification: H04M,H04Q

Abstract:
An apparatus in an integrated services digital network computer-based system, comprising:a source terminal, having,a source processor,a source memory accessible to the source processor, said source memory configured to hold a source terminal program that when executed by the source processor forms an ISDN setup message having a data rate expansion message contained therein, said source memory being configured to hold a data rate expansion indicator for inclusion in said data rate expansion message, anda source terminal interface configured to be coupled to an ISDN switch, said ISDN switch having a channel coordination mechanism that assigns a first B channel and a second B channel as a composite B channel having said first B channel and said second B channel as components, and adapted to send said data rate expansion message to said ISDN switch, whereinsaid data rate expansion message provides said ISDN switch with said data rate expansion indicator so as to inform said ISDN switch that the source terminal requests a composite B channel for communication with a destination terminal using a single ISDN setup message, where said ISDN switch switches said first B channel and said second B channel as a single, inseparable channel that imparts a constant, fixed transmission delay between the information sent over the first B channel and the second B channel components of the composite B channel by sending the information over a same communications route to the destination terminal.