| 摘要 |
In a broadband private automatic branch exchange (BB-PABX) in which a plurality of broadband terminals (BB-E1, . . . , BB-E26) are connected to a broadband switching array (BB-V) to switch video and data signals, the current call status of the system must be signaled to the terminals, so that a broadband connection may be activated. For this purpose, a message characterizing a quiescent state is supplied to one input/output (O) of the broadband switching array (BB-V) of the private automatic branch exchange and all nonswitched input/output (1, 2, . . . , 30) controlled by an associated control unit (C) are linked with the first input/output (O) so that the quiescent state message is always transmitted to all nonswitched terminals.
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