CT-1055/CT-1050 (170-1007/1021) Data Transmission Faxback Doc. # 8860 USING THE PHONE FOR DATA TRANSMISSION You can use your phone with a portable computer or fax machine that has a standard modem to create a go-anywhere data terminal. The optional Data/Voice Accessory (Cat. No. 17-720) must be connected to the phone to do this. Follow the instructions that come with the Data/Voice accessory to install it. When the function is set, the phone's volume control is disabled, and the Data/Voice accessory presets the listening volume level to the midway position. When the function is disabled, normal volume control operation is restored. 1. Press "SEL", "SEL", "GHI4", to display the current status. 2. To select between DATALINK OFF and DATALINK ON, press "SEL". NOTE: If you must talk to someone at the other end of the line, use the handset to set up data communications. Hands-free audio does not work when you set DATALINK to on. 3. When you complete the data communication, press "END" to return the phone to the normal display. (RLR-01\31\94)