An optical compensation film used for a liquid crystal display comprising a support and an optically anisotropic layer is disclosed. In assembly, the roller is first put around the wheel axis. The chalcogenide wiring becomes a heater. For example, a femtocell device may receive an incoming call request for a WCD, determine that the WCD is eligible for an extended handset service, and then cause a telephony device to alert for the incoming call request.