Type: Accessories Ports: 4 FXO Ports 2 RJ45 10/100Mbps (LAN/WAN) Power: 12 Vdc, 1.25Amp Features: Grandstream GXW FXO IP Analog Gateway with 4 ports Designed and tested for full interoperability with leading IP-PBXs, soft-switches and SIP-based environments Manageability, a simple configuration, superb voice and video quality and feature rich functionality Based on open industry standards TFTP and HTTP firmware upgrade support Multiple SIP accounts (choice of 3 profiles per account) Programmable PSTN line settings for different countries/regions Flexible DTMF transmission: In Audio, RFC2833, SIP Info or any combination of the 3 Selectable, multiple LBR coders per channel T.38 Fax compliant