Abstract: A method for managing packet voice networks using a virtual switch approach and abstract information model approach is disclosed. A virtual switch object represents a virtual switch having a media gateway controller and one or more associated media gateways. User input specifies a configuration operation on the virtual switch and one or more parameter values. One or more configuration instructions are automatically issued to both the media gateway controller and the media gateway, resulting in configuring both the media gateway controller and the media gateway as specified in the user input. As a result, a user can configure or operate on a virtual switch as an atomic entity, for example, in a network management application, without involvement in complicated details of the actual network devices that provide a particular packet voice service.

Abstract: A powered reel-type tape measuring device that has a reel of flexible metal measuring tape rotatably mounted on a shaft in a housing with measuring indicia on the tape. An electric powered motor is coupled to a flexible drive roller for pulling the tape from the housing and to the reel itself for pulling the tape into the housing and rewinding it on the reel. A switch having first and second contacts is operatively coupled to the electric power device for energizing the power-driven device to selectively rotate the flexible roller to pull the tape in a forward direction out of the housing with activation of the first switch contact and to drive the reel to pull the tape into the housing for rewinding when the switch is activated in the second position.

Abstract: A marking tool that can be used for locating structural fixtures having a body portion, first and second perpendicular legs slidably contained entirely within the body portion. Each of the first and second legs are extensible from the body portion to position the body portion in a preselected location. At least one template is associated with the body portion such that adjusting the first and second legs positions the body portion and its associated template over a selected one of the fixtures for locating the same.