Communication system selective call screening arrangement
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 14, 1981
Grant Date -
N/A
app pub date -
Mar 26, 1979
filing date -
Mar 26, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A call screening arrangement is disclosed for an intercom communication system in which call features are activated by entering a two digit code from the rotary or multifrequency dial of the connected station sets. Incoming calls to a called station are screened according to the type of call features activated at the called station. The particular call screening feature activated is determined by the order of the sequential activation of the existing Call Forwarding, Callback or Do-Not-Disturb call features. The call screening features enable incoming calls controlled by either a Call Forwarding or Callback feature to selectively bypass a Do-Not-Disturb call blocking feature at the called station. When activated individually the Call Forwarding, Callback and Do-Not-Disturb features perform their individual call control routines.
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