CFVCSHFG Type B Outstation Surface Mount GreenThe VoCALL type B handset is designed to be versatile, compact and easy to use refuge call point. This unit can either be surface or flush mounted using a simple to install bezel (CFVCFHB). This VoCALL Emergency Voice Communication System (EVCS) is designed to fully comply with BS5839 Pt9 (abb. Pt9) for use as a fire telephone system, disabled refuge call system or as a combined system when both fire telephones and disabled refuge points are required.