D-Link DVG-5121SP 2-port VoIP Telephone Adapter (TA). Management protocols: SIP, PPPoE. VPN support: PPTP/L2TP/IPSec Pass-through. Dimensions (WxDxH): 90 x 82 x 31 mm, Weight: 0.152 kg. Operating temperature range (T-T): -10 - 40 °C, Storage temperature range (T-T): -20 - 60 °C, Operating relative humidity range: 10 - 90 %. Certification: FCC Class B CE FCC PART 68 CE TBR21 A-Tick (CE) LVD