1. VoIP SIP2.0 telephone 2. DTMF dialing
3. MTBF100000hours 4. MTTR: 2 hours
5. Auxiliary Contacts:1 Aux Output, dry contact 6. Rated load:0.3 A at 125 VAC; 1 A at 30 VDC
7. Contact Ratings. Load: Resistive load 8. Echo cancellation code:G.167/G.168
9. Rated carry current:1A 10. Max.switching current:1A
11. Max.switching voltage:125 VAC,60VDC 12. Audio Codes:G.711, G.722, G.729
13. IP Protocols:IPv4, TCP, UDP, TFTP, RTP, RTCP, DHCP, SIP
14. Free dial (maximum length of each number is 16 digits)
15. Communication: Full duplex 2-way hands-free communication
16. Call Control Signaling:VOIP SIP Info(DTMF), RFC 2833(DTMF)
17. Network:10/100 BaseTX Ethernet, RJ45 connectors, Cat5e or better
18. Power:Power over Ethernet, IEEE802.3af, Class 0 Local power, 12VDc,Idle 2W, Max 10W
19. Programming:Non-volatile flash memory programming and configuration through Web GUI
20. Management and Operation:DHCP and static IP, remote automatic software upgrade, centralized monitoring, status LED
21. LAN Protocols:Power over Ethernet(PoE,802.3af), WLAN(IEEE 802.3af), Network Access Control(IEEE 802.1x),STP(IEEE 802.1d), RSTP(IEEE 802.1d-2004)