Technical specs

Features:

Support SIP 2.0 (RFC3261) and correlative RFCs

2 SIP lines. Can connect to 2 SIP servers at the same time.

Voice Codec: G.711A/u, G.723.1 high/low, G.729a/b, G.722.1,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

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

Friendly graphic menu

Multilanguage realizes localization

SIP application: support call forward/ transfer (blind/attended)/ holding/ waiting/ 3 way talking/ conference/pickup/ join call/ redial and unredial/ click to dial

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.

Phonebook support 500 records, SMS、XML, Speed dial

Network:

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

bridge mode working as hub(optional)

PPPoE Client

DHCP Client

PoE (optional)

VLAN(voice vlan/data vlan)

Basic NAT and NAPT

NAT transverse:support STUN client

Support main DNS and secondary DNS server; QoS with DiffServ

Support DNS Relay, SNTP Client, Firewall and openVPN

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

Management:

Web ,telnet and keypad management

Different Account class

Upgrade firmware through HTTP, FTP or TFTP

Support DHCP option66 Auto Provisioning

Telnet remote management/upload/ download setting file

Safe mode provide reliability

Auto Provisioning to upgrade firmware or configuration file(HTTPS/FTPS optional)

Support TR-069(optional) and Syslog