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Support SIP 2.0 (RFC3261) and correlative RFCs
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Support IAX2,iax2 line call
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SIP support 2 SIP lines. Can connect to SIP1 and SIP2 server at the same time and can incoming and outgoing via any SIP server.
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Support multiple road call waiting in line
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Codec:G.711A/u, G.7231 high/low, G.729a/b, G.722.1,G.726
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Support HD voice
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Echo cancellation: Support G.168, and Hands-free can support 96ms, Hand free Speaker Phone
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Support Voice Gain Setting, VAD, CNG
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Full duplex hands-free speakerphone
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SIP support SIP domain, SIP authentication (none, basic, MD5), DNS name of erver, Peer to Peer/ IP call
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DTMF Relay:support inband, SIP info,RFC2833
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9 kind of ring type and 3 user-defined music ring
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Large dot matrix LCD display and softkeys make user easier to use
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Support headset jack- RJ9
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4 DSS Key
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Support 5 EXT consoles, each console with 26 keys
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Soft keys programmable; function keys programmable
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Multilanguage realizes localization
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SIP application: support call forward/transfer (blind/attended)/ holding/waiting/ 3 way talking/ conference/paging and intercom/ call park/call pickup/ join call/ redial and unredial/ click to dial/ secondary dialing automatically
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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
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Incoming calls /outgoing calls / missing calls. Each support 100 records.
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Support Phonebook 500 records
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Support SMS and Speed Dial
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Support XML phonebook/browser
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Support SRTP and Blf
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Code synchronization via IP PBX/IMS
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Support click to dial via web phone book
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Support action URL/active URI
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Voice codec setting for each SIP line
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Hands-free headset ringing choice
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WAN/LAN: 10/100M Ethernet ports, supports Route and Bridge mode.
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Support bridge working as hub(optional)
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Support PPPoE for xDSL and PoE(optional)
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Support VLAN(voice vlan/data vlan)
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Support 802.1
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Support basic NAT and NAPT
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NAT transverse:support STUN client
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Support DHCP client on WAN
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Support DHCP server on LAN
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Support main DNS and secondary DNS server.
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Support DNS Relay, SNTP Client, Firewall, openVPN
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Support VPN (L2TP) and DMZ
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Network tools in telnet server: including ping, trace route, telnet client
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