ISDN be Allah channel distribution system

摘要

PROBLEM TO BE SOLVED: To reduce the load of software by separately performing two B channels processing of an ISDN basic interface for POTS and for Internet traffic. ;SOLUTION: A channel multiplexing and dividing device 1 of an access nod(AN) multiplexes and divides each channel of 2B+D of an ISDN BA. A frame relay exchanging device 2 performs frame relay exchange of an IP packet on a B channel which is sent from the device 1, multiplexes it on the B channel of the ISBN BA and transmits it to a multiplexing and dividing device 7. The 2B+D of the ISDN BA is divided into the B channel and a D channel by the device 7 and the B channel is sent to a line switching device 3, is subjected to time division multiplexing to a specified B channel of V5 and is sent to an LE 6. Also, the D channel is mapped upon a C channel of the V5 by means of an envelope function 8 and is sent to the LE 6.;COPYRIGHT: (C)2000,JPO