Abstract: Embodiments of the invention are used to provide a system and method for tearing down and reclaiming an IP address from a multi-IP stack device based on configurable timer parameters that provide a network operator with independent control over each protocol-specific IP network layer session. Dedicated idle and session timers for each IP network layer session are implemented at the network layer of various network nodes in order to independently tear down IPv4 and IPv6 network sessions while maintaining the underlying link layer connection. In embodiments, the IP protocol-specific idle and session timers are processed by the Packet Data Serving Node (PDSN) or the Home Agent (HA).

Abstract: Embodiments of the invention are used to provide a system and method for tearing down and reclaiming an IP address from a multi-IP stack device based on configurable timer parameters that provide a network operator with independent control over each protocol-specific IP network layer session. Dedicated idle and session timers for each IP network layer session are implemented at the network layer of various network nodes in order to independently tear down IPv4 and IPv6 network sessions while maintaining the underlying link layer connection. In embodiments, the IP protocol-specific idle and session timers are processed by the Packet Data Serving Node (PDSN) or the Home Agent (HA).

Abstract: Power spectral density shaping can be used in an XDSL system in order to adjust power spectral density properties of signals transmitted by an XDSL modem. The XDSL modem may include a power spectral density shaping filter, which can be adjusted to change the power spectral density properties of outputted signals. A processor may also perform power spectral density shaping of signals transmitted by the XDSL modem. The power spectral density shaping may be used to increase a downstream transmission rate.

Abstract: The present invention is directed to an integrated access device (IAD) that provides multiple communication interfaces for communications to a variety of service providers. The disclosed IAD acts as a DSL modem and combines the functions of a gateway, router, and Ethernet hub to provide high-speed Internet access to PCs sharing a local network. It provides the networking functions that let PCs connect through a variety of methods, including traditional Ethernet, wireless, universal serial bus (USB), and home phoneline networking alliance (HPNA). It also provides point-to-point protocol over Ethernet (PPPOE) tunneling through network address translation (NAT).

Abstract: Several examples for in-home Voice-Over-Internet Protocol (VOIP) telephony distribution are described. In one example, an analog telephone adapter may be modified to provide wireless capabilities. In another example, an isolation device or circuit may be added to a Network Interface Device or a Central Office. In yet another example, a second pair of wires may be used to provide VOIP service. As a result of implementing any one of these examples, a user may place a VOIP call throughout the user's home without being tethered to a fixed location.

Abstract: Power spectral density shaping can be used in an XDSL system in order to adjust power spectral density properties of signals transmitted by an XDSL modem. The XDSL modem may include a power spectral density shaping filter, which can be adjusted to change the power spectral density properties of outputted signals. A processor may also perform power spectral density shaping of signals transmitted by the XDSL modem. The power spectral density shaping may be used to increase a downstream transmission rate.

Abstract: The present invention is directed to an integrated access device (IAD) that provides multiple communication interfaces for communications to a variety of service providers. The disclosed IAD acts as a DSL modem and combines the functions of a gateway, router, and Ethernet hub to provide high-speed Internet access to PCs sharing a local network. It provides the networking functions that let PCs connect through a variety of methods, including traditional Ethernet, wireless, universal serial bus (USB), and home phoneline networking alliance (HPNA). It also provides point-to-point protocol over Ethernet (PPPOE) tunneling through network address translation (NAT).