Define a standard for the communications interface between the telephone network and the device at the customer premise. The device at the customer premise is identified as a Telemetry Interface Unit (TIU) and may provide an interface between the network and devices at the customer premise such as utility meters, alarm devices, control switches and other devices to be determined. No standard currently exists which provides a definition of On-and Off-Hook methods of using the telephone network for telemetry services of this nature. New IEEE Standard - Inactive-Withdrawn. Withdrawn Standard. Withdrawn Date: Feb 06, 2006.