Capable of supporting up to 72 telephone connections with as many as 10 phones in use at one time makes the IFP-FFT one of the industry's largest-capacity fire fighter communications systems. To reduce expenses and simplify installation, Silent Knight designed the Farenhyt IFP-FFT system to operate on a single loop of standard wire. This high-capacity, lower-cost system is ideal for high-rise buildings and large facilities in regions that require fire fighter telephone systems.