TP-LINK's TD-VG3631 300 Mbps Wireless N Vo IP ADSL2+ Modem Router is the ultimate in home or office connectivity devices offering a plethora of functionality in one robust product. The device provides users with the ability to access & share an internet connection, using a wired or 300 Mbps wireless connection. With its Vo IP functions, users can save on phone costs using traditional land lines or Vo IP telephony services with caller ID, call waiting, call holding, call forwarding, 3-way conference calls & voice mail functionality. in addition, using the device's 2 USB (Universal Serial Bus) sharing ports, users can share printers, files & media across the network or around the world with ftp functions as well as add USB (Universal Serial Bus) storage to enable voicemail functions. With ADSL2+ modem, 300 Mbps wireless AP & Vo IP telephony, the TD-VG3631 is everything your office needs to be fully connected. Users can share a high-speed wireless internet connection while holding conference calls & saving costs on long distance calls. All-in-One Device: ADSL Modem, NAT Router, Wireless N Access Point & Vo IP Gateway 4 10/100 Mbps auto-negotiation LAN Ports, 1 DSL Port, 1 FXO Port, 2 FXS Ports Various call features such as caller ID, call waiting, call holding, call forwarding, 3-way conference calls & voicemail 2 USB (Universal Serial Bus) 2.0 Ports for storage sharing, printer sharing, FTP Server, Media Server & Voice Mailbox