A cost-effective system and method of sending and receiving high quality phone calls over a low-cost network (e.g., a local area network, a WiFi network, etc.) with a wireless device, where such phone calls would typically have been delivered over a cellular network to the wireless device is provided herein. The system enables the wireless device to retain a phone number assigned by its home cellular network to send and receive calls, while still sending and receiving such calls over the low-cost network. The system also enables wireless devices to be authenticated with the home network of the wireless device for purposes other than sending and receiving high-quality phone calls.

A cost-effective system and method of sending and receiving high quality phone calls over a low-cost network (e.g., a local area network, a WiFi network, etc.) with a wireless device, where such phone calls would typically have been delivered over a cellular network to the wireless device is provided herein. The system enables the wireless device to retain a phone number assigned by its home cellular network to send and receive calls, while still sending and receiving such calls over the low-cost network. The system also enables wireless devices to be authenticated with the home network of the wireless device for purposes other than sending and receiving high-quality phone calls.

Methods, devices and techniques are disclosed where vectoring is adapted to lines becoming inactive and active, for example in a discontinued operation. In some embodiments, the vectoring is modified based on already present coefficients.

A device comprises a memory configured to store, for each one of a plurality of communication lines, an associated relative weight and an associated noise value indicative of a signal-to-noise ratio of transmission on the respective communication line. The device further comprises at least one processor configured to perform an optimization of a transmission precoding parameter for vectored transmission on the plurality of communication lines based on the relative weights and the noise values. The at least one processor is configured to effect the vectored transmission on the plurality of communication lines in accordance with the optimized transmission precoding parameter.

A device comprises a memory configured to store, for each one of a plurality of communication lines, an associated relative weight and an associated noise value indicative of a signal-to-noise ratio of transmission on the respective communication line. The device further comprises at least one processor configured to perform an optimization of a transmission precoding parameter for vectored transmission on the plurality of communication lines based on the relative weights and the noise values. The at least one processor is configured to effect the vectored transmission on the plurality of communication lines in accordance with the optimized transmission precoding parameter.

Disclosed embodiments include systems, methods, and media for receiving and transmitting digital data over a plurality of channels. Disclosed embodiments may include receiving data from a plurality of sources through one or more networks. Disclosed embodiments may also include assigning a geographic area to the data from the plurality of sources, the geographic area corresponding to one or more locations associated with the data. Additionally, disclosed embodiments may include determining health effects for a predetermined location based on the data and its associated geographic locations. Further, disclosed embodiments may include generating, by querying a predetermined response database, instructions that address the determined health affects for the predetermined location, the instructions including an action and an associated device. And, disclosed embodiments may include transmitting, to the associated device, the action associated with the instructions.

Methods and apparatus are disclosed for communicating in a telecommunication system. In particular methods and apparatus are disclosed for establishing communications in a telecommunication system having an access node (16) and a plurality of Digital Subscriber Lines (DSLs) (21, 22, 23) each of which may be used to allow communication between the access node (16) and a respective Customer Premises Equipment (CPE) device (51, 52, 53), where communications on a plurality of lines (21, 21) are being performed using vectoring, and where it is desired to add one or more new lines (23) to the existing vectoring group.

A method of operating a captioned telephone call in which an assisted user's (AU's) captioned device is connected by a first line to a hearing user's (HU's) device and by a second line to a relay providing captioning for a conversation is disclosed. The method includes capturing an AU's voice signal via a microphone, transmitting the voice signal from the captioned device to the HU's device on the first line, obtaining a combined voice signal including both users' voice signals from the first line at the captioned device, cancelling the AU's voice signal from the combined signal to generate an independent HU voice signal, broadcasting the HU's voice signal via a speaker, transmitting the independent HU's voice signal to the relay, receiving captions at the captioned device from the relay corresponding to the HU's voice signal, and presenting the captions as text on a display screen.

Described is a method for performance estimation of a communication device. The method comprises: executing active probing to determine active probing data; reading operational data which includes data related to channel and its noise condition, latency and counter values related to user data traffic between the communication device and another communication device, wherein the operational data is relevant to the current settings of the communication device; and training a performance estimation algorithm for the communication device according to the active probing data and the operational data.

Automatic testing/analysis of local loops of telecommunications networks includes obtaining bits-per-tone data for a local loop of a telecommunications network and generating a bit value string from the bits-per-tone data. The bit value string is then analyzed to determine whether it includes a bit pattern indicative of an impairment of the local loop. Further approaches for automatically testing local loops of telecommunications networks include obtaining attenuation data for multiple tones carried by the local loop and determining whether the attenuation data falls below thresholds for providing a service using the local loop.