Описание
VoIP > SIP (SIP RFC3261, RFC 2543)/ IAX2 support 4 SIP lines + 1 IAX2 line Redundancy sip server capable Hotline Call Forward, Call transfer, Call hold, Call waiting, 3-way talking Pickup, Join call, Redial, Unredial Call Park, vport, click to dial DND(Do Not Disturb) Black List, Limit List E.164 dial plan and customized dial rules SMS, Voicemail, BLF
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Voice > Tone generation and Local DTMF re-generation according with ITU-T G.711(A-law or u-law) , G722 , G723 G729 AGC(Auto Gain Control) AEC(Auto Echo Cancellation) VAD (Voice Activity Detection) CNG(Comfort Noise Generation G.165 compliant 96 ms echo cancellation ='''' margin-top:''='''' 3px='''' margin-right:='''' 5px='''' margin-bottom:='''' margin-left:='''' 0px='''' line-height:='''' normal='''' text-align:='''' -webkit-left='''' ''=''''>
Networking > Static/Dynamic WAN-IP-Addressing NAT, Firewall Support VPN (L2TP) Open VPN Support DMZ WAN support Primary and Alter function Qos support Diffserv Support VLAN DHCP client and server Support PPPoE, (used for ADSL, cable modem connecting) ='''' margin-top:''='''' 3px='''' margin-right:='''' 5px='''' margin-bottom:='''' margin-left:='''' 0px='''' line-height:='''' normal='''' text-align:='''' -webkit-left='''' ''=''''>
Protocols > MAC Address TCP:Transmission Control Protocol  DHCP:Dynamic Host Configuration Protocol PPPoE:PPP Protocol over Ethernet PoE(option) 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 ='''' margin-top:''='''' 3px='''' margin-right:='''' 5px='''' margin-bottom:='''' margin-left:='''' 0px='''' line-height:='''' normal='''' text-align:='''' justify='''' ''=''''>
Management > Web, telnet and keypad management Adjustable user password and super password Upgrade firmware through HTTP, FTP or TFTP Telnet remote management Upload/download configuration file Auto-provisioning ( firmware and configuration) Safe mode provide reliability Phone book, maximum 500 entries ='''' margin-top:''='''' 3px='''' margin-right:='''' 5px='''' margin-bottom:='''' margin-left:='''' 0px='''' line-height:='''' normal='''' text-align:='''' justify='''' ''=''''>
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Hardware > 128 x 64 dot matrix Wall mounting  Full duplex speaker MWI: Mono-color x 1 Line keys: Bi-Color x 4 BLF Keys: Bi-Color*9 (Maximum 49 keys with 2 EX20 module) Voicemail LED: Mono-Color x 1 Headset LED: Mono-Color x1 Mute LED: Mono-Color x 1 Speaker LED: Mono Color x 1
='''' margin-top:''='''' 3px='''' margin-right:='''' 5px='''' margin-bottom:='''' margin-left:='''' 0px='''' line-height:='''' normal='''' text-align:='''' -webkit-left='''' ''=''''> Interfaces > WAN * 1 LAN * 1 RJ9 handset Jack *1  RJ9 headset Jack * 1 Power jack * 1 ='''' margin-top:''='''' 3px='''' margin-right:='''' 5px='''' margin-bottom:='''' margin-left:='''' 0px='''' line-height:='''' normal='''' text-align:='''' -webkit-left='''' ''=''''> Electric requirements > Voltage: 9V ~ 24V Power adapter: output DC 12V/450 mA ='''' margin-top:''='''' 3px='''' margin-right:='''' 5px='''' margin-bottom:='''' margin-left:='''' 0px='''' line-height:='''' normal='''' text-align:='''' -webkit-left='''' ''=''''> Operating requirement > Operation temperature: 0 to 40 C ( 32 to 104F) Storage temperature: -30 to 65 C (-22 to 149F) Humidity: 10 to 90% no dew ='''' margin-top:''='''' 3px='''' margin-right:='''' 5px='''' margin-bottom:='''' margin-left:='''' 0px='''' line-height:='''' normal='''' text-align:='''' -webkit-left='''' ''=''''> Compliance Certificates > CE: EN55024 EN55022 ROHS in EU''
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