-20 extension system
-2 positions group selector switch
-10 extension line selector switch
-Built-in system amplifier w/ capacitor battery
-Has terminals for auxiliary 24V DC when used as Common Battery Telephones.
-To avoid noise problems, the 24V DC must be supplied via a DC/DC converter
-LED call indication in front
-Flush mounted
-Wall mounting with corresponding metal cabinet type MBOKS
-Desk mounting with corresponding wooden cabinet type VSPK
-Suitable for installation in wheelhouse and control room