Telephonic communications – Special services – Automatic directory service
Reexamination Certificate
1998-12-31
2003-05-27
Hong, Harry S. (Department: 2642)
Telephonic communications
Special services
Automatic directory service
C379S088010, C379S223000, C379S201080, C455S414200
Reexamination Certificate
active
06570974
ABSTRACT:
FIELD OF THE INVENTION
This invention relates to providing automated directory assistance of telephone numbers and other information and relates to automatically providing information about the geographic location and cable set top device from which a particular emergency 911 telephone call was placed.
BACKGROUND
As deregulation of the telephone industry continues and as companies prepare to enter the local telephone access market, there is a need to offer new and innovative, high bandwidth services that distinguish common carriers from their competitors. This cannot be accomplished without introducing new local access network architectures that will be able to support these new and innovative services.
Conventionally, customer premises telephone and/or data connections contain splitters for separating analog voice calls from other data services such as Ethernet transported over digital subscriber line (DSL) modems. Voice band data and voice signals are sent through a communications switch in a central or local office to an interexchange carrier or Internet service provider. DSL data is sent through a digital subscriber loop asynchronous mode (DSLAM) switch which may include a router. The DSLAM switch connects many lines and routes the digital data to a telephone company's digital switch.
A major problem with this configuration is that interexchange carriers attempting to penetrate the local telephone company's territory must lease trunk lines from the local telephone company switch to the interexchange carrier company's network for digital traffic. Furthermore, the Internet service provider must lease a modem from the local phone company in the DSLAM switch and route its data through the local phone company's digital switch. Thus, the local phone company leases and/or provides a significant amount of equipment, driving up the cost of entry for any other company trying to provide local telephone services and making it difficult for the interexchange companies to differentiate their services. Furthermore, since DSL modem technology is not standardized, in order to ensure compatibility, the DSL modem provided by the local telephone company must also be provided to the end user in the customer premises equipment (CPE). Additionally, since the network is not completely controlled by the interexchange companies, it is difficult for the interexchange companies to provide data at committed delivery rates. Any performance improvements implemented by the interexchange companies may not be realized by their customers, because the capabilities of the local telephone company equipment may or may not meet their performance needs. Thus, it is difficult for the interexchange companies to convince potential customers to switch to their equipment or to use their services. These factors ensure the continued market presence of the local telephone company.
Another opportunity is for the interexchange carrier to employ wireless means of reaching the local telecommunications service subscriber. In U.S. patent application Ser. No. 09/001,363, filed Dec. 31, 1997, entitled “ISD Wireless Network”, it was suggested to provide a wireless integrated service director for communicating with wireless subscriber apparatus. Also, from other U.S. Patent Applications, for example, in “Circuit-Switched Switching System” U.S. Pat. No. 5,978,370, issued Nov. 2, 1999, it is known to provide satellite or other wireless connections directly to the local subscriber, thus bypassing the local network and the local telephone company.
Yet another opportunity for bypassing the local telephone company is the provision of telecommunications services over known coaxial cable or hybrid optical fiber coaxial cable television transmission systems utilizing cable television spectrum in the downstream (toward the subscriber) and upstream (toward the cable television headend) paths for such services. For example, Times Warner has been experimenting with the provision of telecommunications services to and among cable television service subscribers in various geographic regions of the country with marginal success.
As part of this system, there is a need for improved architectures, services and equipment utilized to distinguish the interexchange companies' products and services. One such service is automated white and yellow pages directory assistance. Such service is currently available via web pages that require an internet service provider and which do not provide a committed data delivery rate. An additional situation not adequately addressed by the known prior art is the need to provide reliable information about the geographic location and cable set top device from which an emergency 911 telephone call has been placed.
SUMMARY OF THE INVENTION
In order to provide an improved network, it is desirable for the interexchange companies to have access to at least one of the twisted-pair lines, coaxial cable, hybrid fiber facilities with either twisted pair or coaxial cable or alternate wireless facility connecting each of the individual users to the local cable television or toll telephone or hybrid network before the lines are routed through the conventional local telephone network equipment. It is preferable to have access to these lines prior to any modem or switching technology offered by the local telephone service providers. By having access to the twisted-pair wires or coaxial cable or hybrid facilities entering or leading to the customer's premises, interexchange companies can differentiate their services by providing higher bandwidth, improving the capabilities of the customer premises equipment, and lowering overall system costs to the customer by providing competitive service alternatives.
In one embodiment of the present invention, the interexchange carrier may obtain access to the coaxial cable feeding subscribers to existing cable television services, for example, at a subscriber tap or after a fiber/coaxial cable hub or node in a hybrid fiber coaxial cable television distribution plant. The interexchange carrier may ultimately provide services via the optical fiber leaving the cable television headend. The cable television set top terminal may comprise a telecommunications apparatus or a separate cable modem connected intelligent terminal may provide such services as plain old telephone services, high speed Internet services, video conference services, directory services, multimedia services or other digital services depending on subscriber requirements and capabilities.
A new architecture for providing such services may utilize a video phone and/or other devices to provide new services to an end user; a residence gateway which may be an integrated residence gateway (IRG) disposed near the customer's premises for multiplexing and coordinating many digital services onto a single twisted-pair line or coaxial cable (or both); a cable facilities management platform (C-FMP) disposed remote from or in the local telephone network's central office, the subscriber loop or the coaxial cable distribution plant for routing data to an appropriate interexchange company network; and a network server platform (NSP) coupled to the C-FMP for providing new and innovative services to the customer and for distinguishing services provided by the interexchange companies from those services provided by the local telephone network.
As part of this system, an aspect of the invention: (1) provides white and yellow page directory services with the results of directory assistance queries prioritized based upon user selectable criteria; and (2) automatically identifies the geographic location and addressable cable set top device from which an emergency 911 telephone call has been made.
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patent: 576473
Gerszberg Irwin
Martin Jeffrey S.
Walker Hopeton S.
Wallace Edward L.
AT&T Corp.
Hong Harry S.
Knowlin Thjuan P.
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