Feature

Voip

• SIP 2.0 (RFC3261) and correlative RFCs.

• Full duplex hands-free speaker phone.
• NAT transverse：support STUN client.
• SIP support SIP domain, SIP authentication (none, basic, MD5), DNS name of server, Peer to Peer/ IP call.
• SIP support 2 SIP lines or only one IAX2 lines. Can connect to SIP1 and SIP2 server at the same time DTMF：Support SIP info, DTMF Relay, RFC2833.
• SIP application: support Call forward/ transfer/holding/ waiting / 3 way talking/ paging
• and intercom/pickup/join call/click to dial/call park.
• Call control features: Flexible dial map, Hot line,empty calling reject, Black list for reject
• authenticated call, limit call, No disturb, Caller ID.
• Support Phonebook 500 records
• Incoming calls / Outgoing calls / Missing calls. Each support 100 records
• Support conference and voice record on SIP server
• 10 kind of ring type
• Support SRTP
• Support MWI

Voice

• Codec: G.711 A/U Law, G.722, G.723, G.729,
• Echo cancellation: Support G.168, and Hands-free can support 96ms, Hand free Speaker Phone.
• Support Voice Gain Setting, VAD, CNG

Networking

• WAN/LAN: Support Bridge and Router model
• Support basic NAT and NAPT
• Support PPPoE for xDSL
• Support DHCP Client on WAN
• Support VLAN (optional: voice vlan/data vlan)
• QoS with DiffServ
• Support DMZ
• Support main DNS and secondary DNS server
• Support DNS Relay, SNTP Client, Firewall
• 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
• 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

Maintenance and Management

• Web ,telnet and keypad management
• Management with different account right
• Upgrade firmware through POST mode
• Upgrade firmware through HTTP, FTP or TFTP.
• Telnet remote management/Upload/download setting file
• Safe mode provide reliability
• Supoort Auto Provisioning (upgrade firmware or
• configuration file)
• Support Syslog