l          Support 2.0 and correlative RFCs

l          4 SIP Lines

l          Andriod system

l          Video codecs: H.263, H.264, MPEG4

l          7” TFT 800x480 display

l          POE Supported

l          HD voice

l          Support VLAN,VPN(L2TP/UDP) and DMZ , L2TP ,QoS,VLAN

l          Support SIP 2.0 (RFC3261) and correlative RFCs

l          Support IAX2 (Optional)

l          Support PSTN call(Optional)

l          SIP supports 4 SIP servers, and backup

l          SIP servers. Can connect to these SIP servers at the same time.

l          Voice Codec：G.711A/u, G.7231 high/low, G.729a/b, G.722,G.726, iLBC，AMR-NB，AMR-WB

l          Video Codec: H.263, H.264, MPEG4

l          Video solution: QCIF、CIF、QVGA

l          Image format: PEG、PNG、GIF and BMP

l          Video format: mp4、3gp and flv

l          Echo cancellation: G.168 Compliance in LEC, additional acoustic echo cancellation(AEC) can reach 96ms max filter length in hands-free mode

l          Support Voice Gain Setting, VAD, CNG

l          Support jitter buffer

l          Full duplex hands-free speakerphone

l          SIP support SIP domain, SIP authentication (none, basic, MD5), DNS

l          name of server, Peer to Peer/ IP call DTMF Relay：support inband, SIP info, RFC2833

l          Support customized music rings

l          Support STUN

l          Support SMS based on SIP

l          Volume(handfree/handset/headset/ring) adjustment

l          Visual angle adjustable display screen

l         Professional Speaker/handset HD Voice

l         Ergonomic handset(acoustical cochlea)

l          Touched, Large dot matrix LCD display and softkeys make user easier to use

l          Friendly graphic menu

l          Multilanguage realizes localization

l          SIP application: support forward/transfer (blind/attended/alert)/ holding/ waiting/ 3 ways conference/ paging and intercom/ call park/ pickup/ join call/ redial and unredial/ click to dial//secondary dialing automatically

l          Predial

l          Voice recording during talking /local

l          Call control features: flexible dial map, hotline, empty calling no. reject service, black list for reject authenticated call, white list, limit call, do no disturb, auto answer, caller ID, CLIR (reject the anonymous call), CLIP (make a call with anonymous), Dial without register

l          Human voice caller ID indication

l          Human voice num keypad indication

l          Voice recording during talking/auto answer/local

l          Incoming calls /outgoing calls / missing calls. Each support100 records. Support Phonebook 2000 records

l          Phone book records export/import

l          XML phone book

l          Photo frame

l          Media player(mp4, mp3, wav, wma)

l          Usb disk file management

l          System files management

l          Support VoIP(SIP/RTP) encryption (e.g.RC4)

l          WAN/LAN: support switch mode

l          Support PoE（802.3af

l          Support DHCP Client on WAN

l          Support main DNS and secondary DNS server

l          Support VLAN (Optional)

l          Support NTP Client

l          Support VPN L2TP , Open VPN/TLS, SRTP, HTTPS(Optional)

l          Support QoS with DiffServ(Optional)

l          Support MD5 authentication

l          Network tools in telnet server: including ping, trace route, telnet client

l          Android 2.1

l          Third party android application, e.g. email, IM, internet Radio, web browser

l          Application market

l          Desktop/google search

l          Desktop widget

l          Web ,telnet and keypad management

l          Management with different account right

l          Support automatic upgrades/configuration deployment

l          Support encrypted configuration files download with AES

l          Support pushing message

l         Support SNMP (Optional)

l         Support TR-069 (Optional)