| 摘要 |
<p>The adjunct call processing arrangement eliminates the separation between hard-wired telephone switching system computer facilities and customer owned switchably connectable computer facilities. A general purpose communication interface (DT18) is provided which connects the customer provided computer facilities (T18) to both the switching network (101) and the hard-wired system processor (100) of the telephone switching system via the standard telephone switching system port circuit (118). This general purpose communication interface (DT18) enables a customer provided computer facility (T18) to provide additional call processing capability. In particular, the attendant services call processing subroutines and the directory assistance data base and software are provided on the computer facility. The telephone switching system routes all attendant-directed calls to a telephone station set associated with the computer and transmit call related data to the computer. The computer performs the necessary call processing and transmit a message back to the telephone switching system to indicate the switching system operation necessary to provide the requested service.</p> |
