The VPSI-1 device is designed to allow third party microphones and LED indicators to interface as slave devices to the Vocia Wall Stations (WS-4/10, EWS-4/10) and Desk Stations (DS-4/10) series microphones and to the Vocia Input 6 (VI-6) device for paging via the Paging Ports. The VPSI-1 can also facilitate third party microphones and control system interfacing with Vocia Wall and Desk Stations. The host Paging Station must be configured for ‘Remote control’ mode within the software.