The L753 is an Audio call point, which gives the facility of hands free speech. It incorporates 3 levels of call i.e. Standard Assistance and Emergency. Other features include an infra-red receiver, reassurance LED and 'call follower' sounder. It will also accept a host of triggering devices including pear leads, air switches, and pressure mats etc. The unit may be flush or surface-mounted using the Intercall BB1 Back box.