| 摘要 |
System for connecting a remote user (1) to a PBX (3), via an ISDN (2). The remote user is connected to the PBX via the ISDN by making use of the ISDN PMBS (Packet Mode Bearer Service), via the signalling channel (D channel), and the X.25 network (9), via ISDN local exchanges (5) and packet handlers (3). Via said connection, (QSIG) signalling messages are exchanged between the remote user and the central network, whereby the remote user has the same possibilities as a terminal directly connected to the PBX network. <IMAGE>
|
