Asterisk, Elastix, 3CX compatible.
VoIP phone with 3 SIP lines & 1 IAX2 line.
Support VLAN, VPN (L2TP), POE.
RJ9 headset.
2RJ 45 ports.
Large dot matrix LCD display.

Basic features:

• Support SIP 2.0 (RFC3261) and correlative RFCs.
• Support IA x 2.
• SIP supports 3 SIP servers. Can connect to 3 SIP servers at the same time.
• Codec: G.711A/u, G.723, G.729a/b, G.722.
• Echo cancellation: G.168 compliance in LEC, additional acoustic echo cancellation.
• Support voice gain setting, VAD, CNG.
• Full duplex hands-free speaker phone.
• SIP support SIP domain, SIP authentication (none, basic, MD5).
• DTMF mode: support DTMF_RELAY, SIP_INFO, RFC_2833.

Network features:

• WAN/LAN: 10/100M Ethernet ports, supports Route and Switch mode.
• Support PPPoE for xDSL.
• 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).
• QoS with DiffServ.
• Network tools in telnet server: including ping, trace route, telnet client.

Advanced application features:

• Large dot matrix LCD display and softkeys make user easier to use.
• 2 headset interface (3.5mm Jack or RJ9 connector).
• 6 memory keys.
• Support POE.
• Multi language realizes localization.
• SIP application: support call forward/transfer/holding/waiting/conference/.
• Call control features: flexible dial map, hotline, empty calling no. reject service.
• Incoming calls/outgoing calls/missing calls each support 100 records.
• Support phone book 500 records.
• Support conference and voice record on SIP server.
• Support SMS.
• Maintenance and 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 (upgrade firmware through HTTP, FTP or TFTP).
• Support syslog.