Appeal No. 96-2121
Application 08/252,984
below:
18. A system for establishing a telephone communication
link between a subscriber telephone station and a
destination telephone station, both being connected through
a telephone exchange, comprising:
control means operable for managing a database of
caller information;
storage means connected to the control means and
operable for storing the database of caller
information including a preassigned direct inward
dial telephone number associated with a subscriber
and a subscriber telephone number associated with
the subscriber telephone station;
first telephone connection means connected to the
control means and operable for connecting through
a trunk line to the telephone exchange and for
receiving an incoming direct inward dial telephone
number on the trunk line from the telephone
exchange as part of an incoming call attempt from
the subscriber telephone station, the incoming
direct inward dial telephone number indicating the
number called by the subscriber;
second telephone connection means connected to the
control means and operable for dialing out through
the telephone exchange;
the control means further operable for comparing
the incoming direct inward dial telephone number
to the preassigned direct inward dial telephone
number and, if the incoming direct inward dial
telephone number matches the preassigned direct
inward dial telephone number associated with the
subscriber, the control means is further operable
for:
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Last modified: November 3, 2007