This Telephone Echo Cancellation unit has the following features:
Front: Transmit input, Receive output an dswitches for connect privacy and volume. Back connections and settings: Remote, Echo Canceller, Echo Suppression, Transmit input,Bridge,Record outut,Receive output, 4 wire transmit, Receive in & out, Telephone line & set jacks. People Link Acoustic Telephone Interface EC. This item was pulled from a working environment and appears to be in good condition. This item is used and shows signs of normal wear with minior scuffs and scrapes. No manual or peripherals are included.