The COM310E was retired on August 15, 2008; replacement parts remain available (see Ordering Info). The COM310E was designed for the public switched telephone networks of Europe and European voltage-level phone systems installed elsewhere in the world. Once programmed, it allowed anyone to call a data logger via phone to receive a verbal report of real-time site conditions. The data logger could be programmed to report specific conditions or to allow a caller to select specific information by pressing numbers on a touch-tone phone. The COM310E also supported data transfer rates of 9600 and 1200 baud between the data logger and PC.