Planet VIP-156. Supported network protocols: SIP 2.0 (RFC-3261), TCP/IP, UDP/RTP/RTCP, HTTP, ICMP, ARP, DNS, DHCP, NTP/SNTP, PPP, PPPoE. Power requirements: 12VDC. Dimensions (WxDxH): 94 x 72 x 30 mm. Operating temperature range (T-T): 0 - 40 °C, Operating relative humidity range: 10 - 95 %. Certification: CE, FCC Class B