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7970105 Subscriber line maintenance apparatus and methods  
Subscriber line maintenance apparatus and methods are disclosed. A maintenance operation is performed on a subscriber line in a communication system by an embedded test unit. The test unit limits...
7852910 Systems and methods for loop length and bridged tap length determination of a transmission line  
Through the use of a least squares minimization concept, the loop length, the number of bridged taps and length of the bridged taps on a transmission line can be determined from readily available...
7835431 Systems and methods for loop length and bridged tap length determination of a transmission line  
Through the use of a least squares minimization concept, the loop length, the number of bridged taps and length of the bridged taps on a transmission line can be determined from readily available...
7773734 Method and apparatus for advancing a call setup signaling message  
A method and apparatus for enabling all network elements in a geographically diverse network to advance each call setup message that has not been processed successfully by these network elements to...
7738633 Telecommunication diagnostic information management  
A diagnostic tool is adapted to include the capability of initiating one or more diagnostic tests, collecting the raw data from the diagnostic test(s) and transporting the raw diagnostic data to an...
7664028 Apparatus and method for metering and marking data in a communication system  
A system and/or method for metering and marking packets of data incoming into a communication system having in some embodiments primary and secondary meter selectors, primary and secondary metering...
7657418 Modern testing system and method  
A modem testing system is provided for testing interoperability of plural items of customer premises equipment (CPEs) (10) and plural central offices (COs) (60). The modem testing system includes a...
7529348 Method of performing insertion loss estimation  
The present invention provides a method and apparatus for estimating the insertion loss of a telephone line. A complex waveform is applied to each wire of the telephone line being tested. Real and...
7471771 Telecommunications diagnostic information management  
A diagnostic tool is adapted to include the capability of initiating one or more diagnostic tests, collecting the raw data from the diagnostic test(s) and transporting the raw diagnostic data to an...
7426262 Method and arrangement for loop test of a disturbed line  
The invention refers to single-ended test of a loop (2, 3). A test device (TD1) is connected to a remote device (3) via a line (2). The remote device is powered on and transmits intermittently...
7424097 Method of measuring and improving xDSL transmission characteristic  
A system for measuring the transmission characteristic of an xDSL system that implements high-speed data communication over existing copper telephone wires connecting an office and a subscriber...
7388946 System and method for evaluating the quality of service in an IP telephony network using call forwarding  
Methods and systems are described for verifying communications paths on a network. A test signal is forwarded between network nodes to evaluate quality of service in an IP telephony system. A test...
7388945 Method and system for determining data transfer margins for network connections  
Method and system for determining data transfer margins and/or bit rates for network connections, the physical length of a network connection between a transmitter and receiver being known. A power...
7356127 Global digital measurement device  
A digital wideband node (DWN) (28, 48) is coupled to a remote terminal (RT) (22, 42) that in turn is coupled to a subscriber's telephone line (26, 46). The DWN (28, 48) is configured to (1) pass a...
7206743 Method and apparatus for evaluating the voice quality of telephone calls  
The voice quality of telephone calls is evaluated. A first connection is established between a computerized apparatus and a person acting as a first experimenter, and a second connection is...
7162011 Method and device for measuring the quality of a network for the transmission of digital or analog signals  
A method for measuring a quality of a line network using an in-service non-intrusive measurement device monitoring of live traffic measurement process includes determining reference values of...
7127209 Method and system for providing accurate service record using phone line detector  
A method and system for providing an accurate service record to communication devices seeking modem-based services. The system includes a phone line detector capable of detecting whether a properly...
7068755 Methods and apparatus for characterizing subscriber loop based on analysis of DSL handshaking signals and for optimization of DSL operation  
In some embodiments, a method includes performing at least part of a digital subscriber line (DSL) handshaking process by transmitting at least one handshaking signal via a telephone subscriber...
7065180 System and method for hitless monitoring access of a communications circuit  
A system for monitoring a plurality of communication circuits includes an impedance element configured to be switchably connected to one of the plurality of communication circuits. The impedance...
6987838 System and method for deploying new equipment and services in conjunction with a legacy provisioning system  
In one embodiment, a new device or service can be treated as an abstraction, allowing a model to be created which mimics operation of the device or service, but which does not physically exist. A...
6898272 System and method for testing telecommunication devices  
An invention is provided for testing telecommunications devices. Broadly speaking, test data is encoded prior to testing a SUT. Then, during testing, the encoded test data is transmitted to the...
6829330 Systems and methods for loop characterization from double-ended measurements  
The loop length, the number of bridge taps and the length of the bridged taps can be estimated by comparing through the use of differential evolution a measured frequency domain channel impulse...
6775550 Method of inducing ADSL communication device to transmit at downstream signaling rate optimized for extended range ADSL service with auxiliary pots channel over SDSL link  
An upstream transceiver, coupled to an upstream end of a long haul, single digital subscriber loop of an extended range asymmetrical digital subscriber line communication system, ‘spoofs’ a (co...
6771948 Background data queries in wireless web applications  
The mobile station includes a system for using open channel time not needed during access to the wireless web. The mobile station monitors the use of the channel, and determines when the user is no...
6754309 Communication device and access network device  
Line states are detected accurately to efficiently test subscriber lines, thereby improving the reliability and quality of maintenance and operation. Line monitoring means monitors line states...
6707886 Method and system for testing subscriber loops using touchtone telephone signals  
A subscriber loop test apparatus relates to the testing of a subscriber loop by the use of a touchtone telephone. The touchstone buttons on a telephone provide Dual-Tone, Multiple Frequencies for...
6690768 Power cutback configuration of digital subscriber line transceivers using public switched telephone network signaling  
The invention provides a technique for power cutback of DSL transceivers (e.g., modems) using public switched telephone network (PSTN) signaling. For example, one or more dual-tone/multiple...
6683951 Method and apparatus for providing service to VODSL derived telephone lines during power interruptions  
An apparatus and method for maintaining access to lifeline services through telephone sets provided with telephone service from a voice over digital subscriber loop (VoDSL) transceiver during power...
6631178 System and method for transmitting data over loaded and unloaded twisted pairs  
A system and method for transmitting data over a twisted pair with or without load coils using a transmitter and receiver is disclosed. The system detects load coils by generating and transmitting...
6611593 Call control of ancillary telecommunications equipment using continuity tests  
System and method for controlling an ancillary telecommunications device such as an echo canceller within a telecommunications system. The system and method include and involve a switching system...
6546235 System for cancelling distortion in an electronic circuit  
Generation of a compensation signal for canceling the distortion component of a distorted signal at an affected node, where the distortion component is caused by electro-magnetic coupling from a...
6516049 Method and apparatus for insertion loss estimation in wireline communications  
The current invention provides a method and apparatus for determining insertion loss in wireline communication systems. The method may be implemented with any modulation protocol but is...
6510204 Method and apparatus for providing an all digital loop with power-optimised mode  
An apparatus for use in an all digital loop contains a first network node (30), a second network node (31), and a data transmission line (32) there between. Each one of the first and second network...
6498833 Channel check test system  
When there is an error in setting of a companding law of an encoder or a decoder, there is a problem of an error in judgment although it should be originally judged that the continuity of the...
6496566 Metallic testing of a subscriber loop that provides both voice and digital subscriber line services  
Metallic testing of a subscriber loop that provides voice and DSL services is provided by a voice switch and DSL services, each of which includes a metallic test unit. A voice line card has a...
RE37856 Data correction system for communications network  
An inter-network call accounting system for use in a communication network such as the public switched telephone network in Britain allows call records to be sorted according to the network...
RE37857 Data processing system for communications network  
An inter-network call accounting system for use in a communication network such as the public switched telephone network in Britain allows call records to be sorted according to the network...
6389111 Measurement of signal quality  
A test stimulus includes two signals RR, S. Signal S is transmitted to a customer equipment interface and over a system under test to a complementary remote apparatus. The test apparatus has two...
6317495 Spectral optimization and joint signaling techniques with multi-line separation for communication in the presence of crosstalk  
A system and method for determining transmission characteristics for a communications channel and for transmitting data on the communications channel. In one embodiment, the method starts by...
6285755 Transmission system and transmission apparatus  
A transmission system comprises a plurality of transmission apparatuses which use a single channel commonly. Each transmission apparatus comprises switches for connecting and disconnecting...
6236714 Transmit power control for DSL modems in splitterless environment  
A Digital Subscriber Line (DSL) modem determines the proper transnit power level in a splitterless environment by transmitting a probe signal at different power levels to a telephone set and...
6154524 Method and apparatus for automatically and adaptively adjusting telephone audio quality and DSL data rate in a DSL system  
In a communications environment where it is desirable to allow the simultaneous transmission of digital subscriber line (DSL) signals and conventional plain old telephone service (POTS) signals on...
6111935 Adaptive expansion table in a digital telephone receiver  
A digital telephone (60) comprises send equipment (40) and receive equipment (50), coupled via a signal splitter/combiner (61) onto a digital telephone line (62) for communication with a remote...
6111936 Method and apparatus for automatically detecting and measuring distortion in a DSL system  
In a communications environment where it is desirable to allow the simultaneous transmission of digital subscriber line (DSL) signals and conventional Plain Old Telephone Service (POTS) signals on...
6061427 Transmission power control method in asymmetric digital subscriber line system  
A transmission power control method in an Asymmetric Digital Subscriber Line (ADSL) system for transmitting data through a telephone line interposed between an ADSL-TUC (Transmission Unit Center)...
6049592 System for and method of mutually monitoring information guidance units interconnected to telephone lines  
A fault monitoring system having a reduced cost and management load. The system includes a voice/facsimile response unit composed of a controller and a network interface. The controller has a...
6014425 Apparatus and method for qualifying telephones and other attached equipment for optimum DSL operation  
Apparatus and method are provided for qualifying POTS devices for optimum operation that involve measurements and analysis of the POTS device's impedance over the modem spectrum, noise emanations,...
5970121 Method and apparatus for obtaining feedback regarding data network services  
A method and apparatus for obtaining real-time call by call feedback from customers is to the perceived quality of network services may be accomplished after communication via network connection...
5903626 Diagnostic device for troubleshooting remote digital feature phones  
A method, system, and device for performing diagnostic testing of digital feature phones remotely located from a diagnostic device includes establishing a bi-directional communications link between...
5822398 Control of operating states of channel unit installed in performance monitoring capable D4 channel bank  
A performance monitoring arrangement conducts auxiliary communications between a performance-monitoring capable line interface unit and one or more performance-monitoring capable channel units of a...
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