54Mbps Wireless-G (802.11g) ADSL Router, 2 port SIP VoIP
High-speed ADSL2+ Modem, Internet-sharing Router, 4-Port Switch and Wireless-G Access Point.
Two standard phone jacks enable feature-rich SIP VoIP Connect your PCand other wireless devices to the Gateway and the Internet using the built-in Wireless-G Access Point, or connect directly with the 4-port Ethernet Switch.

G. 711 a-law, G. 711u-law, G. 726, G. 729 A, G. 723.1
Session Initiation Protocol (SIP v2)
Web-based configuration through a built-in web server
DTMF tone detection and generation; Detection (VAD)
Support FSK Caller ID, DTMF Caller ID and FSK VMWI