The fixed handset is wall mounted, available for surface mount. The unit should be mounted in a suitable and dry location at about 1.5m from finished floor level. Common installation positioning is in the landing levels of all core stairwells and escape routes, although the exact positioning is the responsibility of the project designer. The P-9911(F) fixed fire telephone communication point is compatible with the GST-FT series of fire telephone panels, for emergency communication over a dedicated hard wired system normally located with the fire command center.