IP phone
Sip support 3 simultaneous SIP lines or 1 IAX2 line
Support phonebook 500 records
Superior quality and competitive

IP Phone
Support SIP 2.0 (RFC3261) and correlative RFCs
Support IAX2
Supports 3 SIP line
Full duplex hands-free speakerphone
SIP support SIP domain, SIP authentication (none, basic, MD5), DNS name of server,
Peer to Peer/ IP call
DTMF:Support SIP info, DTMF Relay, RFC2833
Advanced Application Features
Large dot matrix LCD display and softkeys make user easier to use
Friendly graphic menu
headset interface ( 3.5mm Jack or RJ9 connector)
6 memory keys
Multilanguage realizes localization
SIP application: support call forward/ transfer (blind/attended/alert)/ holding/ waiting/ 3
way talking/ conference/ paging and intercom/ call park/ pickup/ join call/ redial and
unredial/ click to dial/ vport/secondary dialing automatically/ push to talk
Call control features: flexible dial map, hotline, empty calling no. reject service, black
list for reject authenticated call, white list, limit call, no disturb, caller ID, CLIR (reject the
anonymous call), CLIP (make a call with anonymous), Dial without register
Incoming calls /outgoing calls / missing calls. Each support 100 records.
Support Phonebook 500 records
Support SMS
Support Memo
Support alarm clock
Support Speed dial
Support XML

Voice
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