Telephonic communications – Special services – Call waiting
Reexamination Certificate
2007-08-07
2007-08-07
Smith, Creighton (Department: 2614)
Telephonic communications
Special services
Call waiting
C379S093350, C379S142080, C379S207160, C379S210020
Reexamination Certificate
active
09849971
ABSTRACT:
A method for delivering a priority call waiting alert service to a telephone subscriber. An embodiment of the present invention may be implemented on an Advanced Intelligent Network (AIN). When a call intended the subscriber is received by a service switching point from a calling party while the telephone line is already engaged in a first communication between the subscriber and a third party, the calling party is solicited to supply a priority code. If the priority code is recognized by a service control point, a call waiting tone or a priority alert signal associated with the priority code is played to alert the subscriber that a priority call has been received.
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patent:
Roberts Linda Ann
Silver Edward Michael
AT&T Intellectual Property Inc.
Sing Simon
Smith Creighton
Withers & Keys LLC
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