Abstract: In one embodiment, a VoIP-integrated router operable to interface with analog telephones and digital devices is provided. The VoIP-integrated router is configured to perform a method of estimating the upstream data rate of a modem, comprising transmitting packets at a known rate from the VoIP-integrated router through an upstream path for the modem to a node; during the transmission of the packets, transmitting Internet Control Message Protocol (ICMP) PING messages to the node; and based upon an examination of the PING messages and the known rate, estimating the upstream data rate of the modem.

Abstract: Tractor engine compartment service accessory, optionally portable, preferably permanently installed in engine compartment, has a mounting for attachment to the tractor frame and attached thereto a catwalk and top step extending laterally, the top step resting on the uppermost tread portion of the tractor tire. One or more steps are suspended beneath the top step. A handrail is optionally secured to the top step and a suspended step. The suspended steps may be retracted and nested beneath the top step. The top step may be folded, slid, or otherwise moved to a position above or beneath the catwalk. The catwalk may be rotated upward. The handrail may be disengaged and detached, or it may be rotated to a compact orientation, as needed.

Abstract: In one embodiment, a VoIP-integrated router operable to interface with analog telephones and digital devices is provided. The VoIP-integrated router is configured to perform a method of estimating the upstream data rate of a modem, comprising transmitting packets at a known rate from the VoIP-integrated router through an upstream path for the modem to a node; during the transmission of the packets, transmitting Internet Control Message Protocol (ICMP) PING messages to the node; and based upon an examination of the PING messages and the known rate, estimating the upstream data rate of the modem.