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Codec: G. 711A/ u, G. 7231 high/ low, G. 729a/ b, G. 722, G. 726
Echo cancellation: G. 168 Compliance in LEC, additional acoustic echo
cancellation (AEC) can reach 96ms max filter length in hands-free mode
Support Voice Gain Setting, VAD, CNG
VAD (Voice Activity Detection)
CNG (Comfort Noise Generation)
Networking
WAN/ LAN: 10/100M Ethernet ports
supports Route and Switch mode.
Support PPPoE for xDSL
Support PoE
Support basic NAT and NAPT
NAT transverse: support STUN client
Support DHCP client on WAN
Support DHCP server on LAN
Support main DNS and secondary DNS server.
Support VLAN
Support DMZ
Support DNS Relay, SNTP Client, Firewall
Support VPN (L2TP/ UDP TUNNEL) , Open VPN/ TLS, SRTP security protocol
QoS with DiffServ
Network tools in telnet server: including ping, trace route, telnet client
Protocols
MAC Address
TCP: Transmission Control Protocol
DHCP: Dynamic Host Configuration Protocol
PPPoE: PPP Protocol over Ethernet
PoE (option)
SNTP, Simple Network Time Protocol
STUN - Simple Traversal of User Datagram ...
MD5 Message-Digest Algorithm
DNS: Domain Name Server
RTP: Real-time Transport Protocol
RTCP: Real-time Control Protocol
Telnet: Internet's remote login protocol
HTTP: Hyper Text Transfer protocol
FTP: File Transfer protocol
TFTP: Trivial File Transfer Protocol
Management
Web , telnet and keypad management
Management with different account right
Upgrade firmware through POST mode
Telnet remote management/ upload/ download setting file
Safe mode provide reliability
Support Auto Provisioning (HTTP, FTP or TFTP)
Support Syslog
Hardware
CPU: Broadcom BCM1190 275MHz
SDRAM: 128Mbits
Flash: 32Mbits
LCD: 57.54 x 79.2mm
Power Consumption Idle: 2.5W/ Active: 2.8W
Interface
Power Input: 100-240VAC Output Power, 5VDC, 1A.
WAN RJ4510/100M port.
LAN RJ4510/100M port.
2 Headset interface (3.5mm Jack or RJ9 connector)
Operating requirement
Operation temperature: 0℃ to 40℃ (32 to 104F)
Humidity: 10 to 90% no dew