HandyTone-496 is a next generation dual-port SIP IAD for Internet data, voice, and fax. The HT–496 is a full feature voice and fax-over IP device that offers a high-level of integration including an integrated router, NAT, DHCP server, dual port FXS telephone gateway. The HT–496 is compact, works with any analog or cordless phone and fax machines and offers the simplicity of plug and dial.