Abstract: Methods and systems are provided for supporting efficient and secure “Machine-to-Machine” (M2M) communications using a module, a server, and an application. A module can communicate with the server by accessing the Internet, and the module can include a sensor and/or an actuator. The module, server, and application can utilize public key infrastructure (PKI) such as public keys and private keys. The module can internally derive pairs of private/public keys using cryptographic algorithms and a first set of parameters. A server can authenticate the submission of derived public keys and an associated module identity. The server can use a first server private key and a second set of parameters to (i) send module data to the application and (ii) receive module instructions from the application. The server can use a second server private key and the first set of parameters to communicate with the module.

Abstract: Methods and systems are provided for efficient and secure “Machine-to-Machine” (M2M) between modules and servers. A module can communicate with a server by accessing the Internet, and the module can include a sensor and/or actuator. The module and server can utilize public key infrastructure (PKI) such as public keys to encrypt messages. The module and server can use private keys to generate digital signatures for datagrams sent and decrypt messages received. The module can internally derive pairs of private/public keys using cryptographic algorithms and a set of parameters. A server can use a shared secret key to authenticate the submission of derived public keys with an associated module identity. For the very first submission of a public key derived the module, the shared secret key can comprise a pre-shared secret key which can be loaded into the module using a pre-shared secret key code.

Abstract: Methods and systems are provided for power management and security for wireless modules in “Machine-to-Machine” communications. A wireless module operating in a wireless network and with access to the Internet can efficiently and securely communicate with a server. The wireless network can be a public land mobile network (PLMN) or a wireless local area network (LAN). The wireless module may include a sensor and may be installed next to a monitored unit. The wireless module may utilize active states for collecting and sending data, and sleep states at other times to conserve a battery and/or energy usage. The wireless module minimize the time spent in a radio resource control (RRC) connected state. Messages between the wireless module and server can be transmitted according to a user datagram protocol (UDP). The wireless module and server can utilize public key infrastructure (PKI) for encryption and digital signatures.

Abstract: An example method may involve using a first IP:port number to receive from a second IP:port number a first media control channel stream including quality information indicative of a quality of transmission of a first media stream being sent through a network; sending from the first IP:port number to the second IP:port number a second media control channel stream including quality information indicative of a quality of transmission of a second media stream; based on a network handover request, sending from a third IP:port number to the second IP:port number a third media control channel stream including quality information indicative of a quality of transmission of a third media stream being received through an alternate network; and using the third IP:port number to receive from the second IP:port number a fourth media control channel stream including quality information indicative of a quality of transmission of a fourth media stream.

Abstract: Methods and systems are provided for efficient handover of a media session between heterogeneous IP networks. A mobile device with Internet access can operate a software program to communicate with a corresponding node. The corresponding node may access the Internet through a firewall which may include NAT-routing functionality. The mobile device establishes a media session with a corresponding node via the transmission of a first media stream and receipt of a second media stream, and a media-control channel can optionally be implemented. The mobile device can acquire Internet access through a second IP address, and packets routed between the second IP address and the Internet may traverse a firewall. The mobile device can evaluate a set of network parameters at the second IP address from a stored LAN profile. A software routine can (i) evaluate preferred IP addresses and (ii) select an efficient handover procedure according to handover procedure rules.

Abstract: Methods and systems for online incremental adaptation of neural networks using Gaussian mixture models in speech recognition are described. In an example, a computing device may be configured to receive an audio signal and a subsequent audio signal, both signals having speech content. The computing device may be configured to apply a speaker-specific feature transform to the audio signal to obtain a transformed audio signal. The speaker-specific feature transform may be configured to include speaker-specific speech characteristics of a speaker-profile relating to the speech content. Further, the computing device may be configured to process the transformed audio signal using a neural network trained to estimate a respective speech content of the audio signal. Based on outputs of the neural network, the computing device may be configured to modify the speaker-specific feature transform, and apply the modified speaker-specific feature transform to a subsequent audio signal.

Abstract: Methods and systems are provided for efficient handover of a media session between heterogeneous IP networks. A mobile device with Internet access can operate a software program to communicate with a corresponding node. The corresponding node may access the Internet through either (i) a NAT router or (ii) a public IP address. The mobile device establishes a media session with a corresponding node via the transmission of a first media stream and receipt of a second media stream, and a media control channel can optionally be implemented. The mobile device can acquire Internet access through a second IP address, and packets routed between the second IP address and the Internet may traverse a NAT router. A software routine can determine that handover of the media session from the first IP address to the second IP address is preferred.

Abstract: Methods and systems are provided for efficient handover of a media session between heterogeneous IP networks. A mobile device with Internet access can operate a software program to communicate with a corresponding node. The corresponding node may access the Internet through either a NAT router or a firewall. The mobile device establishes a media session with a corresponding node via the transmission of a first media stream and receipt of a second media stream, and a media control channel can optionally be implemented. The mobile device acquires Internet access through a second IP address, and packets routed between the second IP address and the Internet may traverse a NAT router. The mobile device evaluates the type of NAT at the second IP address from a stored LAN profile. A software routine determines that handover of the media session from the first IP address to the second IP address is preferred.

Abstract: Methods and systems are provided for efficient handover of a media session between heterogeneous Internet Protocol (IP) networks. A mobile device with Internet access can operate a software program to communicate with a corresponding node. The corresponding node may access the Internet through a firewall which may include Network Address Translation (NAT)-routing functionality. The mobile device establishes a media session with a corresponding node via the transmission of a first media stream and receipt of a second media stream, and a media-control channel can optionally be implemented. The mobile device can acquire Internet access through a second IP address, and packets routed between the second IP address and the Internet may traverse a firewall. The mobile device can evaluate a set of network parameters at the second IP address from a stored Local Area Network (LAN) profile.

Abstract: Methods and systems are provided for efficient handover of a media session between heterogeneous IP networks. A mobile device with Internet access can operate a software program to communicate with a corresponding node. The corresponding node may access the Internet through either a NAT router or a firewall. The mobile device establishes a media session with a corresponding node via the transmission of a first media stream and receipt of a second media stream, and a media control channel can optionally be implemented. The mobile device acquires Internet access through a second IP address, and packets routed between the second IP address and the Internet may traverse a NAT router. The mobile device evaluates the type of NAT at the second IP address from a stored LAN profile. A software routine determines that handover of the media session from the first IP address to the second IP address is preferred.

Abstract: Methods and systems are provided for efficient handover of a media session between heterogeneous Internet Protocol (IP) networks. A mobile device with Internet access can operate a software program to communicate with a corresponding node. The corresponding node may access the Internet through a firewall which may include Network Address Translation (NAT)-routing functionality. The mobile device establishes a media session with a corresponding node via the transmission of a first media stream and receipt of a second media stream, and a media-control channel can optionally be implemented. The mobile device can acquire Internet access through a second IP address, and packets routed between the second IP address and the Internet may traverse a firewall. The mobile device can evaluate a set of network parameters at the second IP address from a stored Local Area Network (LAN) profile.

Abstract: Methods and systems are provided for efficient handover of a media session between heterogeneous IP networks. A mobile device with Internet access can operate a software program to communicate with a corresponding node. The corresponding node may access the Internet through either (i) a NAT router or (ii) a public IP address. The mobile device establishes a media session with a corresponding node via the transmission of a first media stream and receipt of a second media stream, and a media control channel can optionally be implemented. The mobile device can acquire Internet access through a second IP address, and packets routed between the second IP address and the Internet may traverse a NAT router. A software routine can determine that handover of the media session from the first IP address to the second IP address is preferred.

Abstract: Methods and systems are provided for efficient handover of a media session between heterogeneous Internet Protocol (IP) networks. A mobile device with Internet access can operate a software program to communicate with a corresponding node. The corresponding node may access the Internet through a firewall which may include Network Address Translation (NAT)-routing functionality. The mobile device establishes a media session with a corresponding node via the transmission of a first media stream and receipt of a second media stream, and a media-control channel can optionally be implemented. The mobile device can acquire Internet access through a second IP address, and packets routed between the second IP address and the Internet may traverse a firewall. The mobile device can evaluate a set of network parameters at the second IP address from a stored Local Area Network (LAN) profile.

Abstract: Methods and systems are provided for efficient handover of a media session between heterogeneous Internet Protocol (IP) networks. A mobile device with Internet access can operate a software program to communicate with a corresponding node. The corresponding node may access the Internet through either a Network Address Translation (NAT) router or a firewall. The mobile device establishes a media session with a corresponding node via the transmission of a first media stream and receipt of a second media stream, and a media control channel can optionally be implemented. The mobile device can acquire Internet access through a second IP address, and packets routed between the second IP address and the Internet may traverse a NAT router. The mobile device can evaluate the type of NAT at the second IP address from a stored Local Area Network (LAN) profile. A software routine can determine that handover of the media session from the first IP address to the second IP address is preferred.

Abstract: Methods and systems are provided for efficient handover of a media session between heterogeneous Internet protocol (IP) networks. A mobile device with Internet access can operate a software program to communicate with a corresponding node. The corresponding node may access the Internet through either (i) a Network Address Translation (NAT) router or (ii) a public IP address. The mobile device establishes a media session with a corresponding node via the transmission of a first media stream and receipt of a second media stream, and a media control channel can optionally be implemented. The mobile device can acquire Internet access through a second IP address, and packets routed between the second IP address and the Internet may traverse a NAT router. A software routine can determine that handover of the media session from the first IP address to the second IP address is preferred. The mobile device may begin transmitting a third media stream to the corresponding node before the first media stream stops.

Abstract: Telephone calls between a mobile station (MS) and the mobile network or PSTN are routed through the Internet via VoIP using a femtocell, as opposed to the traditional macrocellular network. The femtocell can comprise a USB Transceiver Station that is connected to a personal computer through a universal serial bus port, which provides both power and a multi-megabit per second connection between the personal computer and the USB transceiver station. The USB transceiver station can comprise a microcontroller to manage signaling between the RF front end/baseband processor and the personal computer, as well as a precise timing mechanism to assist the synchronization of femtocell timing with the surrounding macrocellular network, if it is present. The USB transceiver station can have a compact form factor that that facilitates a high degree of portability by the subscriber, such as being readily attachable to their keychain.

Abstract: A system and method for providing packet-switched telephony service. The system provides call control, signaling, and/or delivery of voice, video, and other media in substantially real time. One embodiment of the system includes a call client application on a user device, and a call server located at a packet-switched telephony service provider. The call server is preferably operable to communicate with the call client in a non-native protocol and with the gateway in a native protocol.

Abstract: A system and method for providing packet-switched telephony service. The system provides call control, signaling, and/or delivery of voice, video, and other media in substantially real time. One embodiment of the system includes a call client application on a user device, and a call server located at a packet-switched telephony service provider. The call server is preferably operable to communicate with the call client in a non-native protocol and with the gateway in a native protocol.

Abstract: Telephone calls between a mobile station (MS) and the mobile network or PSTN are routed through the Internet via VoIP using a femtocell, as opposed to the traditional macrocellular network. The femtocell can comprise a USB Transceiver Station that is connected to a personal computer through a universal serial bus port, which provides both power and a multi-megabit per second connection between the personal computer and the USB transceiver station. The USB transceiver station can comprise a microcontroller to manage signaling between the RF front end/baseband processor and the personal computer, as well as a precise timing mechanism to assist the synchronization of femtocell timing with the surrounding macrocellular network, if it is present. The USB transceiver station can have a compact form factor that facilitates a high degree of portability by the subscriber, such as being readily attachable to their keychain.

Abstract: A multi-level hosted inbound administration platform for a packet-switched telephony system is provided. The platform provides services for managing the distribution and features of direct inward dialing numbers (DIDs). The platform allows a client to import or purchase DIDs, make DIDs available to sub-distributors, and provision them to end-users. The platform allows sub-distributors to reserve and activate DIDs, make DIDs available to downstream sub-distributors, and provision them to end-users. The platform provides a billing structure for DID usage, with charges being applied on a one-time, monthly, or variable basis. The platform also allows clients and sub-distributors to charge for inbound services based on per-minute or per-usage charges.