A device for assisting the driver of a towing vehicle to maneuver the vehicle toward a vehicle to be towed to position the hitch members of the vehicles in precise alignment. The device includes a vertically extending sighting rod carried by an articulating arm assembly mounted on the towed vehicle and a stop member mounted on the towing vehicle. The sighting rod is aligned with the vertical axis of the cooperating hitches and is viewed by the driver during backing with respect to an index marke...

A contactor media for removing waste from water comprising at least two mated discs. Each disc having parallel raised ribs separated by parallel inverted ribs in an alternating rib-inverted rib pattern. Every rib and inverted rib has a series of uniformly spaced apart recesses with the recesses of the ribs located on the side of the disc opposite the recesses of the inverted ribs. The mated discs have the recesses of the inverted ribs of one disc interfitted with the recesses of the ribs of the ...

An IP PBX system that serves enterprise telephones via a landline IP network connection is be expanded to serve cellular wireless communication devices (WCD) via a cellular wireless carrier's radio access network (RAN). Calls to and from the cellular WCD are connected through the cellular carrier's RAN and the IP PBX system, so that the IP PBX system can control and manage the calls just as the IP PBX would control and manage calls involving other extensions on the IP PBX. A cellular WCD thereby...

A short dedicated code, such as an N11 telephone number, is used to access an information source selected from a large number of voice, data, facsimile and/or video services offered by information service providers. The system can use a single N11 number for all calls, or a first code number for preprogrammed call processing and a second number for casual access. The system can route an information service call based at least in part on preprogrammed selection data for the caller stored in a cen...

A method and system in which a subscriber station that is operating under one subscriber account can make changes to a service profile that is associated with another subscriber account. The subscriber station operating under the one subscriber account will send a feature code into a telecommunications network, and, based at least in part on the feature code, the network will identify a change to make to the profile of at least one other subscriber account. The network will then make the identif...

A short dedicated code, such as an N11 telephone number, is used to access an information source selected from a large number of voice, data, facsimile and/or video services offered by information service providers. The system can use a single N11 number for all calls, or a first code number for preprogrammed call processing and a second number for casual access. The system can route an information service call based at least in part on preprogrammed selection data for the caller stored in a cen...

In a packet-switched network, a subscribing application subscribes to a network presence server to receive selected network presence information. The network presence server obtains the selected network presence information, at least in part, from status messages that a network access server, such as a packet data serving node (PDSN), sends, for example, to an accounting server. The network presence server then provides the selected network presence information to the subscribing application. Th...