Abstract: A method of analyzing the performance of a modem connection. The method includes connecting a line interface to a communication link carrying signals of a modem connection, between a pair of end modems, collecting signals passing on the communication link, between the end modems, through the line interface, determining quality or transmission characteristics regarding the modem connection, responsive to signals collected through the line interface, and displaying information on the determined characteristics.

Abstract: A system and method for creating a custom-developed service by a customer in a service directory of a network service provider are provided. The data defining the custom-developed service received by the network service provider may be tested, corrected, and verified. The service directory may be established in the provider's network to store the data associated with the custom-developed service. Once the custom-developed service is established and operational, the customer or its subscribers may be billed based on their use of the service.

Abstract: Estimates of a communication system configuration, such as a DSL system, are based on operational data collected from a network element management system, protocol and users. The operational data collected from the system can include performance-characterizing operational data that typically is available in the OSL system via element-management-system protocols. Generated estimates and/or approximations can be used in evaluating system performance and directly or indirectly dictating/requiring changes or recommending improvements in operation by transmitters and/or other parts of the indication system. Data and/or other information may be collected using internal means or using system elements and components via e-mail and/or other extra means. The likelihood of the models accuracy can be based on various data, information and/or indicators of system performance, such as observed normal operational data, test data and/or prompted operational data that shows operating performance based on stimulation signals.

Abstract: A line terminal for determining operational status of a U interface includes a time presetting module, a current detecting module, a cycle selecting module, a timer, and a synchronization determining module. The time presetting module is for presetting a plurality of time cycles. The current detecting module is for detecting a loop current flowing via the U interface. The cycle selecting module is for selecting a time cycle from the plurality of time cycles. The timer is for timing during the time cycle. The synchronization determining module is for determining if a line terminal has been synchronized with a digital service unit. The operational status of U interface is determined to be working normally when the line terminal has been synchronized with the digital service unit. A method for determining the operational status of U interfaces is also provided.

Abstract: A testing device for hazard alarm systems, particularly fire alarm systems, having a hazard alarm control panel connected with a variety of devices via a device loop configured as a ring bus system, and has at least one communication circuit for communication with the individual devices. The communication circuit comprises multiple functional units. The current measurement unit is checked and monitored by a device simulation unit that is completely integrated into the communication circuit and is controlled by a control unit configured as a microcontroller.

Abstract: The invention relates to methods for testing analog telephone line equipment including, in particular to detect faults in their hybrid resistor arrays. It consists in isolating the equipment from the telephone line and then applying the normal ringing signal to it. If the resistor array is defective, the output logic signal of the off-hook/on-hook detector circuit comprises a succession of 0 and 1 at the frequency of the ringing signal, which indicates the fault. This makes it possible to eliminate the equipment test relay usually employed.

Abstract: A system and method for imputing data into a database includes an imputing system operable to impute data based on outside plant construction principles. The imputing system includes an inventory database, a data engine, a search engine, and a loop engine. The inventory database includes a plurality of distribution records each associated with one or more cable pairs. The data engine determines if a desired distribution record corresponding to a desired cable pair includes missing data. The search engine searches a known class of serving terminals for complete distribution records and iteratively searches a sized binder group within the inventory database for one or more complete distribution records where the size of the binder group searched increases with each iterative search. The loop engine determines an imputed value for the desired distribution record based on the searching and imputes the value into the desired distribution record.

Abstract: A method for testing a Local Number Portability (LNP) ported telephone number is provided according to the invention. The method includes in a first switch generating a LNP test telephone call to a second switch. The LNP test telephone call is targeted to the LNP-ported telephone number associated with the first switch. The method further includes indicating that the LNP-ported telephone number is being correctly routed in the second switch if the first switch receives the LNP test telephone call back from the second switch. The method further includes indicating that the LNP-ported telephone number is being incorrectly routed in the second switch if the first switch does not receive the LNP test telephone call back from the second switch.

Abstract: An improper connection determination method includes a closed circuit forming step, a current detection step and a determination step. In the closed circuit forming step, a closed circuit from one of at least two contacts in a telephone connection terminal of a communication apparatus to another one of the at least two contacts in the telephone connection terminal is formed. In the current detection step, a current flowing in the closed circuit, when the closed circuit is formed in the closed circuit forming step, is detected. In the determination step, it is determined that the telephone line is improperly connected to the telephone connection terminal when the current is detected in the current detection step.

Abstract: A method and loop qualification unit for determining loop parameters of a topology of a twisted pair loop for a digital subscriber line system. The parameters are represented by a vector that receives a measurement of a SELT parameter measured at one end of the loop and a measurement of a DELT loop transfer function measured at both ends of the loop. A first model generator generates a first model for the SELT parameter and a second model generator generates a second model for the DELT function based on the loop parameters represented by the vector. A processor then determines the parameters by minimizing the differences between the first model and the SELT parameter, and the second model and the DELT function. The determined parameters are represented by the vector that provides the minimization.

Abstract: A broadband service, such as Digital Subscriber Line (DSL) service, may be tested by a technician installing or performing maintenance on the broadband service. The technician may use the subscriber's computer as a test set, in which the technician may login to a testing service that may test the line using test equipment located externally to the subscriber premise. A test application may receive, from a computing device located at the subscriber premise, a request to test the broadband service at the subscriber premise as part of installation of the broadband service. The test application may initiate a test of the broadband service using test equipment located externally to the subscriber premise. The test may include tests relating at least to the physical layer of the broadband network connection. Results of the test may be transmitted to the subscriber premise.

Abstract: A communication apparatus including: a semiconductor DAA which performs line closing and opening processings; and a controller including; an adjustment controlling section which controls the semiconductor DAA such that a line voltage and a line current upon closing a line fall within a predetermined range; an adjustment-control starting section which starts the control; an adjustment-control stopping section which stops the control; and a change detecting section which detects a change of conditions of supply of the line voltage, wherein the adjustment-control starting section starts the control where the line closing processing has been performed and where the change has been detected, and wherein the adjustment-control stopping section stops the control when a predetermined length of time has passed, in at least one of where the line closing processing has been performed and the control is being performed, and where the change has been detected and the control is being performed.

Abstract: The present invention provides two subscriber line testing systems, three broadband/narrowband telecommunication systems and a broadband line card. In the subscriber line testing systems of the present invention, a test module is configured in the CO broadband device, reducing the complexity and the cost of the subscriber line testing systems. In the broadband line card provided by the present invention, line capturing relays are configured in the broadband line card so that the LPF card can be designed as a passive device to reduce corresponding costs, thus using this broadband line card helps reduce the complexity of the CO broadband device and the subscriber cost thereof. In the three broadband/narrowband telecommunication systems provided by the present invention, by using the subscriber line testing systems and the broadband line card, the complexity of broadband/narrowband telecommunication systems and subscriber cost thereof are also reduced.

Abstract: Embodiments related to line testing are described and depicted.

Abstract: A method and apparatus for detecting unterminated phone line loops. The method comprises generating a voltage differential pulse across a phone line loop, measuring a voltage differential across the phone line loop, and determining if the phone line loop is properly terminated based upon the measured differential. The apparatus comprises a voltage pulse generator, two phone wires, and a voltage pulse detector. The voltage pulse generator sends a voltage differential pulse, the two phone wires carry the voltage differential, and the voltage pulse detector measures the voltage differential across the phone wires.

Abstract: Methodologies and structure are provided for use in a communications line that transmit data without plain old telephone service (POTS), or splits the POTS service from the data service, to inhibit oxidation of electrical connections within the physical communications line between the central office of a service provider and a subscriber premises and/or subscriber equipment. A direct current load is drawn by a sealing current terminator circuit that is electrically coupled across the communications line at a convenient location proximate or within the subscriber's location so as to assist in providing oxidation reducing direct current flow along a portion of the communications loop coupling the service provider with the subscriber.

Abstract: The invention relates to a distribution frame (1) for telecommunications and data technology, the distribution frame (1) having a system side and a subscriber side, which are each formed by at least one distribution frame connection module (2, 3), the distribution frame connection modules (2, 3) each having a jumper side by means of which the electrical connections between the system side and the subscriber side can be changed, comprising an access matrix (15) by means of which the electrical connections are routed between the system side and the subscriber side, the electrical connection being passed on by means of the access matrix (15) or else being connected to a test unit (16) via a test bus (17), the access matrix (15) being arranged in the distribution frame connection module (3, 2) on the subscriber side or the system side, and to a distribution frame connection module (2, 3) suitable for this purpose.

Abstract: A method for analysing the status of a subscriber loop belonging to an access network portion of a fixed network infrastructure, the subscriber loop not supporting a broadband service wherein the access network portion includes further subscriber loops, a set of which support broadband services. The method includes the steps of collecting attenuation measures associated with said set of subscriber loops supporting said broadband services; and processing said attenuation measures to obtain an estimation of a maximum bit rate that can be offered on the subscriber loop to be analysed.

Abstract: A telecommunications service provisioning method and system are disclosed having customer-want date (CWD) oriented scheduling. In one embodiment, the method comprises: (a) accepting order entry notifications; and (b) initiating an initiator process for each order entry notification. The initiator process initiates multiple processes including a truck roll process that arranges for a visit to the customer premises for installation of equipment. The truck roll process may implement a jeopardy timer that sends an alert message if prerequisites for the truck roll process have not been satisfied by some predetermined time in advance of the installation date. The initiator process may send a customer reminder two days before a prearranged installation date. One or more of the other initiated processes may arrange for activation of a service component (e.g. 911 emergency location service) a predetermined period before the installation date.

Abstract: A method and apparatus for testing telephone sets to determine their sound quality comprising a system for repeatedly applying a sequence of pulse tones to a test telephone where the respective tone frequencies are different and within the normal human voice range.

Abstract: The present invention provides an optimum ADSL line configuration parameter to a subscriber line and improves performance quality of an ADSL line. An ADSL line performance test portion implements an ADSL performance test before starting ADSL line service operation and grasps a subscriber line state. Test results are stored in a database and are referred to for the sake of maintenance of ADSL line service. In addition, the ADSL line performance test portion operates in a maintenance mode as required and also implements the ADSL line performance test in an ADSL line service operation state so as to constantly hold in the database a current optimum ADSL line configuration parameter for the subscriber line.

Abstract: A method and apparatus for mechanizing the currently manual ADSL loop testing process is disclosed. In one embodiment, an automated loop testing device is disclosed, where the loop testing device has a pair of terminals, e.g., RJ-11 jacks on both sides of the device. The jack on one side connects to inside wiring which, in turn, connects to an ADSL modem. The other jack connects to an outside line which, in turn, connects to a central office of a network provider. In operation, the present device detects a line voltage reversal and then disconnects the input line to the ADSL Modem. When the voltage returns to normal, then the device behaves normally by being closed, essentially acting as a pass through device and again connects the input lines to the output lines.

Abstract: The invention provides a test phone whereby the test phone comprises means to communicate to a server, means to generate SIP signaling towards the server, whereby the test phone by means for SIP signaling may request the server to set-up a test call using specific resources for routing said test call.

Abstract: A device for adjusting a transmit power spectrum of a subscriber device of a communication network, having a means for receiving an attenuation measure for an attenuation, which a signal experiences on its way from a transmit/receive means to the subscriber device of the communication network connected to the transmit/receive means, from the subscriber device, a means for determining a modified attenuation measure and shaping coefficients for a frequency-dependent shaping of the transmit power spectrum based on the attenuation measure determined by and received from the subscriber device, and a means for transferring the modified attenuation measure and the shaping coefficients to the subscriber device.

Abstract: A method and a system for impairment line testing are provided. The method includes electrically connecting a first terminal of a measurement device, which may be a time domain reflectometer, to both wires of a twisted wire pair of a telephone line, which interconnects a telephone line card with a subscriber. The second terminal of the measurement device is electrically connected to a common reference, which may be the ground reference. Then, the method includes performing an impairment testing on the telephone line from the measurement device toward the subscriber.

Abstract: A method and apparatus for modeling a network comprising a plurality of transmission lines is described, the method and system being adapted to measure loop parameters of first transmission line to provide measured loop parameters, determine a topology of the first transmission line by analyzing the measured loop parameters with reference to at least a one model of a plurality of models for transmission lines of different topologies, select a further model for estimating crosstalk related parameters based on the determined topology, and estimate at least one crosstalk related parameter based on the determined topolgy and the selected further model.

Abstract: A quality evaluation device for quality evaluation of an audio signal transmitted via an audio signal channel includes a unit for providing contacting information to a remote user, wherein the contacting information includes a contact address. A measurement server includes an interface designed to be a final point of the audio signal channel after an access with the contact address by the remote user, wherein a starting point of the audio signal channel is the remote user, and wherein the measurement server is further designed to subject the signal provided by the remote user via the audio signal channel to the quality measurement. The quality evaluation device further includes a unit for sending a quality evaluation result generated by the measurement server from the measurement server to the remote user. This allows any user able to access the measurement server, for example per internet, to evaluate and compare qualities with any terminals, any transmission channel settings, various telephone providers.

Abstract: The invention is a method and system conducting a completion test on a communications line. The system includes a testing device coupled to a remote device by a network. Line-test results are received from the testing device and made available to various client devices via the same or another network. Test data is automatically archived for analysis.

Abstract: A splitter card having integral test access devices. The splitter card allows test access to be readily provided at any location where splitter cards are typically mounted (e.g., a splitter chassis).

Abstract: A method for determining reference virtual noise of Digital Subscriber Line (DSL), includes: obtaining a receiver-end-actual noise of DSL subcarriers; and determining a reference virtual noise according to the obtained receiver-end-actual noise of the DSL subcarriers. Furthermore, the invention also discloses a device for determining a reference virtual noise of DSL, and a method and a system for configuring the reference virtual noise of DSL. The invention can improve the accuracy of the reference virtual noise, thereby making the configuration of the reference virtual noise more accurate.

Abstract: Systems and methods for characterizing loops based on single-ended line test (SELT) are described. One embodiment includes a method for determining whether a straight-loop departure condition exists on a loop under test. In accordance with such embodiments, the method comprises receiving an un-calibrated echo signal for the loop under test using frequency domain reflectometry single-ended line testing (FDR-SELT), a region associated with the loop under test, a platform type, and a length of the loop under test. Based on the region, platform type, and loop length, the method further comprises determining whether the loop is not a straight loop, wherein determining whether the loop is not a straight loop comprises determining whether at least one differentiating feature is present in the un-calibrated echo signal. Another embodiment includes a method for determining a loop gauge for a loop under test.

Abstract: Double-ended line probing (DELP) techniques are described herein that enable a loop configuration to be identified based on mathematically simple error functions, which are both time-efficient and less sensitive to measurement errors. A DELP algorithm uses readily available data about the channel that is generated prior to the modem operation (e.g., theoretical loop models) and other available data (e.g., that provided by loop diagnostic modules) to estimate the loop configuration including the line length and gauge, as well as the number of bridge taps and their gauges, lengths, and locations.

Abstract: A method and apparatus for mechanizing the currently manual ADSL loop testing process is disclosed. In one embodiment, an automated loop testing device is disclosed, where the loop testing device has a pair of terminals, e.g., RJ-11 jacks on both sides of the device. The jack on one side connects to inside wiring which, in turn, connects to an ADSL modem. The other jack connects to an outside line which, in turn, connects to a central office of a network provider. In operation, the present device detects a line voltage reversal and then disconnects the input line to the ADSL Modem. When the voltage returns to normal, then the device behaves normally by being closed, essentially acting as a pass through device and again connects the input lines to the output lines.

Abstract: A method and system of an embodiment may provide a user interface enabling automated testing of a network device. The automated testing may include specifying a network device to be tested, specifying a network technology for testing the network device, specifying a client of the network device, configuring network connectivity for the network device, and enabling execution by the client of a network device of a test action. Configuring network connectivity may include dynamically configuring a network to include the specified network technology and the specified network device.

Abstract: A system and method for testing a subscriber loop. A maintenance port of a switch is configured to dial a phone number associated with a subscriber loop. A remote device is commanded to initiate a test for the subscriber loop utilizing a test bus. Test measurements of the subscriber loop are received from a remote test head.

Abstract: A loop around system and method for use in a telephone line monitors line conditions to detect the initiation of loop testing and automatically bypasses an electronic device, such as a DSL line conditioner, used in the line to prevent the electronic device from being inadvertently detected by the testing system as a line fault. The system additionally shuts down power to itself from the line so that it does not interfere with testing, while continuing to monitor the line during testing to detect conditions that characterize the termination of testing, and then automatically switches the electronic device back into the line upon the conclusion of testing. The system and method may be employed unattended at intermediate locations in the line remote from the CO or the CPE.

Abstract: A method for determining performance of data communication lines in a DSL network is provided. The method includes determining a performance metric for at least one line from a first set of data that included measurements for each of a plurality of parameters related to the at least one line; establishing a benchmark utilizing a second set of measurements that includes at least one additional measurement for the plurality of parameters; and comparing the performance metric with the benchmark to determine the performance of the at least one line.

Abstract: A method for training line drivers in a communication system; each driver coupled with at least one communication line configured for communicating with subscriber equipment using at least one tone-set; includes the steps of: (a) selecting a test driver; (b) selecting a test line coupled with the test driver; (c) establishing synchrony with subscriber equipment on the test line; (d) applying a test signal to the test line using a selected tone-set; (e) determining noise on the test line; (f) evaluating whether noise on the test line plus a noise margin is within a predetermined range; (g) when noise is acceptable, designating the selected tone-set for operational employment; (h) repeating steps (b)-(g) until sufficient lines are evaluated for the test driver; and (i) repeating steps (a)-(h) until sufficient drivers are evaluated.

Abstract: This present invention simplifies the installation work, the initialization, the operation confirmation, and the test run work of a monitor terminal in a field site that monitors a monitor object. Communication information and management information, such as a telephone number used to communicate with a communication terminal in a field site at test run time, are integrated. For example, the common values (default values) are set in the communication terminal, which will communicate with a monitoring apparatus, as communication information (IP address, user ID, password) to allow the monitoring apparatus to communicate with the communication terminal by setting only the telephone number of the communication terminal in the monitoring apparatus. During a test run, the monitoring apparatus performs operation to change the communication information and the management information in the communication terminal to the information suitable for a production run.

Abstract: The invention includes a system and a method for testing a communication network. The inventive method transmits a first signal from a first point to a second point of the communication network, where the first and the second points are remotely located. The inventive method further includes recording a first time value of the transmitting of the first signal using a first clock, receiving a second signal at the second point of the communication network, and recording a second time value of the receiving using a second clock. The first clock and the second clock operate from a substantially similar reference. The method may further include comparing the first signal and the second signal as a function of the first and second time values. Also, the method may determine at least one performance characteristic of the communication network based on the comparison.

Abstract: A remote test unit and method of operation are provided for utilizes the ability of an access matrix ability to route signals. The Remote Test Unit can emulate a central Digital Subscriber Line Modem (DSLM-C) for testing customer premises equipment containing a remote Digital Subscriber Line Modem (remote Digital Subscriber Line Modem). The Remote Test Unit can also emulate a remote Digital Subscriber Line Modem for testing central offices equipment including a digital subscriber line access multiplexer (DSLAM) containing a central Digital Subscriber Line Modem. The Remote Test Unit can also emulate a concentrator connected to the DSLAM, a router connected to the concentrator, an Internet service provider (ISP) connected to the router, and a web site connected to the Internet service provider over the Internet.

Abstract: A system and method are disclosed having concurrent processes that install different aspects of telecommunications service. In one embodiment, the provisioning method may comprise: (a) accepting order entry notifications; and (b) initiating an initiator process for each order entry notification. The initiator process in turn initiates a set of processes that operate concurrently to provide different aspects of a telecommunications service. The processes in the set may include an access process that arranges for installation of a connection between a premises and a communications network, and a truck roll process configured to arrange for a separate visit to the premises for installing equipment. Alternatively, the processes may include an equipment ordering process that arranges for the procurement of equipment to be installed on the premises, a local number porting process that arranges for transfer of a phone number, and a virtual components process that arranges for programming of network switches.

Abstract: A method and system for comparing signal strength in a speakerphone system is disclosed. The system is configured to operate in a half-duplex mode, where the direction of communication is determined by comparing signals based on the transmit input signal and the receive input signal. The system estimates and compares the transmit data signal strength and the receive data signal strength. The system then controls a transmit switch and a receive switch to selectively enable transmission based on the comparison. The system also reconfigures the estimation components based on the comparison of the estimated signal strengths. In one implementation, the system estimates the signal envelopes for the inputs and the envelopes of the noise components of the inputs. The system uses the estimates to calculate the data component of the input signals by subtracting the noise envelope from the total signal. A controller compares the strength signals to determine the current state of the system.

Abstract: A system and method for performing DSL assessments of a telephone line along a prescribed test path is disclosed. The disclosed system includes a loop diagnostic test unit adapted for testing said telephone line using narrow-band and mid-band frequency test signals; a test system controller and a test system server to provide the DSL assessments to a user via an appropriate interface. In addition, the disclosed methods include the basic steps of: accessing the telephone line along the test path that includes selected hardware such as a voice switch test bus, central office splitter, service provider instruments and terminations; ascertaining various line characteristics along the test path using mid-band and narrow-band frequency signals; analyzing the line characteristics to identify line conditions that affect DSL service; and determining the impact of the line conditions on DSL service.

Abstract: A portable, automated telephone line test device includes a test module which applies test signals to a telephone line to be tested and detects electrical characteristics of the telephone line, and a user interface module. The user interface module includes a microprocessor, a display, a keyboard and a program memory in accordance with a standard microcomputer architecture. The processor of the user interface module is programmed to control the test module to perform a pre-programmed sequence of tests. The display provides indications of the tests being performed. The programmed sequence is varied by the device according to test results. Depending on the results obtained, the device also provides interpretative diagnostic messages and instructs the user to carry out additional test procedures.

Abstract: A method for qualifying a telephone line for very-high-bit-rate digital subscriber line (“VDSL”) service is disclosed. Generally, a telephone line for VDSL service is prequalified based on a length of the telephone line. A VDSL rate of the telephone line is measured and it is determined whether to qualify as VDSL data qualified based on the measured VDSL rate and a VDSL rate threshold. A VDSL video quality of the telephone line is measured and it is determined whether to qualify the telephone line as VDSL video qualified based on the measured VDSL video quality. Finally, a network database is updated with the determined VDSL data and video qualifications of the telephone line.

Abstract: Calculating, detecting, observing, and validating operating characteristics, conditions, and metrics, especially quality of service metrics, of a system. The quality of service metrics are reported and utilized to manage the service. The various elements of the system for generating the quality of service metrics are integrated, with the same or substantially the same schema and metadata in the databases management systems of the externalized metric configuration data database, and the raw transaction data database. There is extensive code reuse, with the various engines, as the standard requirements methodology engine and thee standardized extensible calculation engine utilizing the same classes or objects, and as appropriate, the same function calls, interfaces, api's, and the like.

Abstract: Certain embodiments of the present disclosure provide systems and methods for voicemail notification. In one embodiment, a method includes submitting an extension call request to a telephony system, wherein the extension call request identifies a recipient extension. The method also includes receiving a return message from the telephony system in response to the extension call request. The method further includes determining whether the recipient extension is currently associated with the telephony system based on the return message received from the telephony system. In addition, the method includes documenting an association between the recipient extension at the telephony system if the recipient extension is currently associated with the telephony system. The preceding operations may be repeated for additional recipient extensions and/or additional telephony systems to determine associations between one or more recipient extensions and one or more telephony systems.

Abstract: A system abstracts channel information from field data gathered in actual wireless communication system environments. The abstracted data is then transformed into control signals or programming codes that can be used to control channel simulators so as to recreate the field conditions, including path loss, slow fading, fast fading, path delay, fading power spectral density with and without line-of-sight (LOS), and different kind of handoff scenarios, such as soft, softer, intra-band hard, inter-band hard handoffs. The system thus can accurately simulate a realistic wireless communication link originated from multiple signal sources in different band channels and formed by multipath signal propagation. The simulated realistic wireless communication link can be condensed by selecting the most useful scenarios from its original field data files or modified by tuning its parameters as desired.

Abstract: A measuring system comprises a pulse generator, an under test device, a variable resistor and a detecting control system. The pulse generator provides pulse signals with different voltage peaks to the under test device and the variable resistor. The variable resistor adjusts its resistance value according to a control signal. The detecting control system detects the voltage ringing ranges of the first terminal of the under test device at different resistance values. The detecting control system generates the control signal to adjust the resistance value of the variable resistor according to the voltage ringing ranges.