Telephonic communications – Emergency or alarm communications – Central office responsive to emergency call or alarm
Reexamination Certificate
2005-02-01
2005-02-01
Tsang, Fan (Department: 2645)
Telephonic communications
Emergency or alarm communications
Central office responsive to emergency call or alarm
C379S037000, C379S046000, C379S221090
Reexamination Certificate
active
06850600
ABSTRACT:
According to the present invention, intelligent call routing and call return capabilities are provided in an Advanced Intelligent Network (AIN) or AIN-type network environment. The intelligent call routing features of the present invention may be utilized for routing service calls to an appropriate service or control center (e.g., a Poison Control Answering Point (PCAP)), in accordance with the location of the calling party and one or more routing options. For example, the Number Plan Area (NPA) and Central Office Code (NXX) of the calling party's telephone number may be analyzed in order to determine where to route the call. In addition, other routing features may be provided to facilitate handling of the call. For instance, calls may be routed according to the time-of-day and/or day-of-week, and recorded announcements may be provided to indicate when a particular service call cannot be completed. The routing features of the present invention may also be combined with the intelligent call return capabilities, for returning the service call over the network to a location from which the call was transferred (e.g., to a 911 operator located at a Public Service Answering Point (PSAP)).
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Tsang Fan
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