Technical specs

Features:

Support SIP 2.0 (RFC3261) and correlative RFCs

IAX2 protocol ( optional ) and HD voice

Optional PSTN port

4 SIP lines. Can connect to 4 SIP servers at the same time.

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

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

Video solution: QCIF、CIF、QVGA

Image format: PEG、PNG、GIF and BMP

Video format: mp4、3gp and flv

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

Full duplex hands-free speakerphone

SIP support SIP domain, SIP authentication (none, basic, MD5), DNS name of server, Peer to Peer/ IP call

DTMF Methos: SIP INFO, In-band, RFC2833

Support customized music rings

Support STUN

Support SMS based on SIP

Volume(handfree/handset/headset/ring) adjustment

Visual angle adjustable display screen

Professional Speaker/handset HD Voice

Ergonomic handset(acoustical cochlea)

Advanced Features:

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

Friendly graphic menu

Multilanguage realizes localization

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

Predial

Voice recording during talking /local 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

Human voice caller ID indication

Human voice num keypad indication

Voice recording during talking/auto answer/local

Incoming calls /outgoing calls / missing calls. Each support 100 records.

Support Phonebook 2000 records

Phone book records export/import

 XML phone book

Photo frame

Media player(mp4, mp3, wav, wma)

USB disk file management

System files management

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

Network:

WAN/LAN: 10/100M Ethernet ports, supports Switch mode

PPPoE Client

DHCP Server/Client

Support PoE（802.3af)

VLAN(voice vlan/data vlan)

Basic NAT and NAPT

NAT transverse:support STUN client

Support main DNS and secondary DNS server;

Support QoS with DiffServ(Optional)

Support DNS Relay, SNTP Client

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

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

Management:

Android 2.1

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

Application market

Desktop/google search

Desktop widget

Web ,telnet and keypad management

Management with different account right

Support automatic upgrades/configuration deployment

Support encrypted configuration files download with AES

Support pushing message

Support SNMP (Optional)

Support TR-069 (Optional)