Buy Phone Hardware Back To Homepage CN-8 Router (Required) The heart of the SiteConnect system, the CN-8 Dialer supports up to 8 SafeCall ADA phones and offers the industry's only ASME compliant solution with back-up phone line capability. Enables simultaneous communication with all ADA elevator phones. Call negotiator with capacity of 8 ADA phones and 4 master stations. Complete with backup battery, transformer, can, telco cord and block. Requires less homerun wiring than competing systems. 4¼" w x 9½" h x 2⅛" dOne year warranty beginning at date of registry rather than date of purchase.