Switching system control arrangements
作者： John Joseph Driscoll , Gregory Stewart Dewitt , Laurence Edwin Burley , Robert Alan Trygar , David Wayne Kelly
DOI:
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摘要: Methods and arrangements for properly associating an alerting message from ISDN user terminal with the control process associated are disclosed. Each call, in a disclosed switching network, is call data structure. When external request received, structure including predetermined broadcast Terminal Endpoint Identifier (TEI) reference value selected by created. Further, TEI sent to terminal. The responds unique that (not TEI). network searches structures until located which includes of received TEI. then changed so further messages can uniquely identify engaged call.
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