The HT502 is an analog telephone adapter (ATA) featuring 2 FXS ports. The product’s inclusion of an integrated NAT router and dual 10/100Mbps Ethernet WAN and LAN ports enables a shared broadband connection between multiple Ethernet devices as well as the extension of VoIP services to analog phones. In addition to being SIP compliant, the product features support for up to 2 SIP account profiles, excellent voice quality and advanced telephony features.