Abstract: Communication endpoints, software update servers, and related methods are disclosed. A communication endpoint includes a data storage device including a boot loader partition, a boot loader settings partition, and a plurality of combo image partitions. A method includes receiving an update package including a new combo image and one or more repair modules configured to diagnose and repair at least one of a boot loader, boot loader settings, and a file system of the communication endpoint. The method also includes replacing a combo image stored on one of the plurality of combo image partitions with the new combo image, and executing at least one of the one or more repair modules. A software update server includes a data storage device including the update package, and communication elements configured to transmit the update package to the communication endpoint.

Abstract: A method to generate a contact list may include receiving an identifier of a first communication device at a captioning system. The first communication device may configured to provide first audio data to a second communication device. The second communication device may be configured to receive first text data of the first audio data from the captioning system. The method may further include receiving and storing contact data from each of multiple communication devices at the captioning system. The method may further include selecting the contact data from the multiple communication devices that include the identifier of the first communication device as selected contact data and generating a contact list based on the selected contact data. The method may also include sending the contact list to the first communication device to provide the contact list as contacts for presentation on an electronic display of the first communication device.

Abstract: Methods and devices for enabling and disabling the updating of an adaptive filter for echo cancellation of a communication device are disclosed. An echo canceller may include an adaptive filter enabled to update responsive to a determination that a first condition is satisfied that there is no double talk detected on the communication device, and a determination that a second condition is satisfied based, at least in part, on a performance characteristic. The adaptive filter may be disabled from updating responsive to at least one of the first condition and the second condition not being satisfied. Described is disabling the adaptive filter from updating responsive to detecting a performance characteristic of the adaptive filter to fail to meet a condition indicating that the adaptive filter is diverging. The condition to be met may be independent of whether double-talk is determined to be present on the communication device.

Abstract: A method to detect dial tone on a telephone line may include taking samples of incoming audio on a telephone line. The method may also include determining volumes of the samples. The method may further include determining whether the volumes of a threshold number of the samples are at or above a threshold volume. The method may also include, in response to determining that the volumes of a threshold number of the samples are at or above a threshold volume, determining that the incoming audio on the telephone line includes a dial tone.

Abstract: A computer-implemented method to provide transcriptions of an audio communication session is disclosed. The method may include receiving audio data at a first device from a second device over a first wireless network connection of a first wireless network type and providing the audio data to a speaker of the first device for output of the audio data. The method may further include encoding the audio data at the first device based on a second wireless network type and transmitting the encoded audio data from the first device over a second wireless network of the second wireless network type.

Abstract: Methods and devices for updating filter coefficients during echo cancellation are disclosed. A communication device includes a processor configured to operate a background filter configured as an adaptive filter, operate a foreground filter configured as a fixed filter; and update the foreground filter with coefficients from the background filter responsive to monitoring a history of both a near-end signal energy and an estimated far-end signal energy for a pre-determined time window in which conditions of each of the near-end signal energy and the estimated far-end signal energy are satisfied. A related method includes monitoring a near-end signal energy, monitoring an estimated far-end signal energy, performing an echo cancellation, and transferring coefficients from an adaptive filter to a fixed filter responsive to a history of both the near-end signal energy and the estimated far-end signal energy satisfying conditions for a pre-determined time window.

Abstract: Apparatuses and methods are disclosed for automatic volume control of an audio stream reproduced by a captioning communication service for use by a call assistant in generating a text transcription of a communication session between a hearing-impaired user and a far-end user. The automatic volume control automatically adjusts a volume of the audio stream reproduced by the captioning communication service responsive to a volume control command identifying which of the far-end voice signal and the near-end voice signal is active at a given time. The system further includes an echo modifier configured to add distortion to an echo portion of the far-end voice signal when generating the audio stream.

Abstract: Apparatuses and methods are disclosed for providing captioning of a video communication session for a conversation between at least two users in which media data is communicated between at least two communication devices during a video communication session involving a video captioning service. The video captioning service provides text captions for the far-end audio of the video communication session, in which the user of the second communication device is associated with a hearing-capable user that is not authorized to receive text captions from the video communication service during the video communication session.

Abstract: A communication system facilitating communication for assisting hearing-impaired users includes an analog telephone adaptor (ATA) device and a communication device. The communication device is configured to route digital voice data between the ATA device and a second communication device during a conversation involving the communication device and a second communication device through a wireless port of communication device, and communicate through the wireless port with a relay service configured to provide interpretive assistance for a hearing-impaired user of the communication device.

Abstract: Systems and methods related to providing error correction in a text caption are disclosed. A method may comprise displaying a text caption including one or more blocks of text on each of a first device and a second device remote from the first device. The method may also include generating another block of text and replacing a block of text of the text caption with the another block of text. Furthermore, the method may include displaying the text caption on the second device having the block of text of the first text caption replaced by the another block of text.

Abstract: Communication devices configured to assist hearing-impaired users and related methods are disclosed that synchronize unclean data records of a local database with a remote database of a backend server. Communication elements are configured to receive audio signals from a far end communication device, and to receive text captions corresponding to the audio signals from a relay service for display by the communication device during a call. The memory device stores a local database of data records for the communication device. Each data record has at least one flag associated therewith indicating whether the data record is involved in a modification to the local database by the hearing-impaired user. The processor is configured to synchronize unclean data records from the local database with a remote server associated with the relay service responsive to querying flags in the local database that indicate data records that are unclean.

Abstract: A communication system facilitating communication for assisting hearing-impaired users includes an analog telephone adaptor (ATA) device and a communication device. The communication device is configured to route digital voice data between the ATA device and a second communication device during a conversation involving the communication device and a second communication device through a wireless port of communication device, and communicate through the wireless port with a relay service configured to provide interpretive assistance for a hearing-impaired user of the communication device.

Abstract: Apparatuses and methods are disclosed for automatically connecting to a relay service and establish a captioning communication session during a call between a hearing-impaired user and a far-end user. The apparatus includes communication elements configured to receive captions from a relay service, and a processor configured to automatically connect to the relay service and establish a captioning communication session during a call responsive to a determination that a connection to the relay service failed during a time in which the hearing-impaired user desired captions to be enabled. A method includes determining captions are desired by the hearing-impaired user at a first time to be enabled for display to the communication device during a call, detecting a failed connection to the relay service at a second time, and automatically connecting with the relay service and establishing a new captioning communication session at a third time during the call.