the price as low as USD 82.99

Voice Features:

Support SIP 2.0, H.323, Lifeline
Codec: G.711A/u, G.7231 high/low, G.729
Echo cancellation: Support G.168
Support Voice Gain Setting, Jitter Buffer,VAD,CNG, and Peer to Peer
NAT transverse: support STUN client
Support SIP domain, SIP authentication, DNS name of server
Support two sip server at the same time
DTMF: Support SIP info, DTMF Relay,RFC2833
SIP application: support Call forward
Call control features: Flexible dial map, Reject service, Black list, out-limit, No disturb


Network Features

WAN/LAN: Support Bridge and Router model
Support basic NAT and NAPT
Support PPPoE for xDSL
Support DHCP Client on WAN
Support DHCP Server on LAN
Support DNS Relay, SNTP Client, Firewall, route, telnet client


Maintenance and Management

Support Boot Monitor
Can upgrade firmware through boot monitor
Can config through Web, Telnet
Can upgrade firmware and configuration file through HTTP, FTP, TFTP
Support Syslog


Maintenance DECT Features

Digital Stand
Caller Memories and phone book
Handfree
120 hour standby time
PSTN call is default