Abstract: A method, apparatus, and system are provided for invoking third-party call control via a cable-television host device. A video signal is received into a cable-television host device, the video signal comprising an identifier associated with a first telephony endpoint. A command is received into the cable-television host device, the command requesting establishment of a communication session between the first telephony endpoint and a second telephony endpoint. A message is transmitted via a packet-switched network from the cable-television host device to a network entity, wherein the message comprises content based at least in part on the identifier, and wherein the message further comprises content for causing the network entity to invoke third-party call control to attempt to establish the communication session between the first telephony endpoint and the second telephony endpoint.

Abstract: A method and apparatus for cooling a cathode ray tube in a projection television receiver including a lens assembly for focusing images formed by the cathode ray tube. A cooling chamber is arranged in front of the cathode ray tube and behind the lens assembly in thermal contact with the face of the cathode ray tube through which the images are projected. This cooling chamber is then filled with an optically clear substantially waterless liquid consisting of an isoparaffinic solvent which is distributed under the trademark ISOPAR V.