作者: James Scott Hiscock , Sudha Kalyan Kowtha , Chakradhar Kondapalli
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摘要: A telephone system connects a user to plurality of call participants in sequence calls referred as “call chain.” Features each the chain, such number(s) participant(s) be called and scheduled duration call, may stored computer-readable record. first is established between participant chain. The terminated automatically by upon expiration predetermined maximum or when hangs up telephone. Upon termination second third subsequent chain same manner.