Yeastar S50. Product colour: Black, Mounting type: Desktop/Wall mounting, Certification: CE. Voice codecs: G.711, G.722, G.726, G.729A. VoIP protocols: SIP (RFC3261), IAX2, Supported protocols: UDP, TCP, TLS, SRTP. Ethernet LAN data rates: 10,100,1000 Mbit/s, Networking standards: IEEE 802.3, IEEE 802.3ab, IEEE 802.3u. Power consumption (typical): 2.1 W