The SonicWALL TZ 170 SP, part of SonicWALL's TZ 170 Series, is a total security platform for retail, telecommuter, and branch office applications that ensures continuous network uptime for critical, secure data connectivity through integrated and automated failover and failback technologies. Dual broadband WAN connections plus an integrated analog modem make the TZ 170 SP the first appliance to offer broadband-to-broadband-to-analog WAN redundancy for unparalleled network uptime.