1.Aluminum alloy die-casting shell, high mechanical strength and strong impact resistance.
2.Support 2 lines SIP, SIP 2.0 (RFC3261).
3.Audio Codes:G.711, G.722, G.729.
4.IP Protocols:IPv4, TCP, UDP, TFTP, RTP, RTCP, DHCP, SIP.
5.Echo cancellation code:G.167/G.168.
6.Supports full duplex.
7.WAN/LAN: support Bridge mode.
8.Support DHCP get IP on WAN port.
9.Support PPPoE for xDSL.
10.Support DHCP get IP on WAN port.
11.Heavy Duty handset with hearing Aid compatible receiver, Noise canceling microphone.
12.Weather proof protection to IP66-IP67.
13.Waterproof zinc alloy Keypad.
14.Wall mounted, Simple installation.
15.Connection: RJ11 screw terminal pair cable.
16.Sound level of ringing:over 80dB(A).
17.Multiple housings and colors.
18.Self-made telephone spare part available.
19.CE, FCC, RoHS, ISO9001 compliant.