FES SHDSL.BIS EXTENDERS COMPLY WITH ITU‐T G.991.2 (2004) STANDARD OPTIMIZED FOR SMALL TO MEDIUM SIZE BUSINESS ENVIRONMENT. THE SHDSL.BIS INTERFACE PROVIDES BUSINESS‐CLASS, MULTI‐RANGE FROM 192KBPS TO 5.696MBPS (2‐WIRE ROUTER) AND 384KBPS TO 11.392MBPS (4‐WIRE ROUTER) SYMMETRIC PAYLOAD RATES OVER EXISTING COPPER WIRES.