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Hardware |
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Lines (Direct Numbers) |
2-Line enterprise-class IP phone |
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Display |
128*48 Graphic LCD with blue backlight |
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Feature Keys |
2 line keys include in 4 DSS keys |
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4 Soft Keys |
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12 dialing buttons (0~9, *, #) |
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12 fixed function buttons |
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Protocols and Standard |
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Data Networking |
MAC Address (IEEE 802.3) |
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IPv4 (RFC 791) |
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Address Resolution Protocol (ARP) |
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DNS: A record (RFC 1706), SRV record (RFC 2782) |
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Dynamic Host Configuration Protocol (DHCP) client (RFC 2131) |
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Internet Control Message Protocol (ICMP) (RFC 792) |
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TCP (RFC 793) |
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User Datagram Protocol UDP (RFC 768) |
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Real Time Protocol RTP (RFC 1889, 1890) |
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Real Time Control Protocol (RTCP) (RFC 1889) |
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Differentiated Services (DiffServ) (RFC 2475) |
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Type of service (ToS) (RFC 791, 1349) |
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VLAN tagging 802.1p Layer 2 quality of service (QoS) |
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Simple Network Time Protocol (SNTP) (RFC 2030) |
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Backward compatible with RFC 2543 |
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Session Timer (RFC 4028) |
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SDP (RFC 2327) |
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NAPTR for SIP URI Lookup (RFC 2915) |
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Voice Gateway |
SIP version 2 (RFC 3261, 3262, 3263, 3264) |
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SIP supported in NAT networks [including STUN (RFC 3489)] |
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Message Waiting Indicator (RFC 3842) |
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Voice algorithms: |
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- G.711 (A-law and μ-law) |
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- G.7231 high/low |
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- G.729a/b |
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- G.722.1 |
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- G.726 |
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Dual-Tone Multi-Frequency (DTMF), In-Band and Out-of-Band (RFC 2833) (SIP INFO) |
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Voice Activity Detection (VAD) with Silence Suppression |
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Adaptive Jitter Buffer Management |
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Comfort Noise Generation |
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Echo Cancellation Message |
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Features |
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Advanced Features |
SIP 2.0 (RFC3261) / IAX2 |
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IEEE 802.3af Power over Ethernet (PoE) compliant |
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Multiple road call waiting in line |
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Supports HD voice |
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Supports SRTP and BLF |
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SIP support SIP domain, SIP authentication (none, basic, MD5), DNS name of server, Peer to Peer / IP call |
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Inband, SIP info, RFC 2833 DTMF Relay |
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9 kinds of ring types and 3 user-defined music rings |
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Large dot matrix LCD display and soft keys make user easier to use |
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Supports 5 extension consoles with each consisting of 26 keys |
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Soft keys programmable; function keys programmable |
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Multilanguage realizes localization |
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Echo cancellation: Support G.168, and Hands-free can support 96ms |
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Full duplex hands-free speaker phone |
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Hands-free headset ringing choice |
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Support Voice Gain Setting, VAD, CNG |
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Voice codec setting for each SIP line |
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SIP Applications |
Call forward / Transfer (blind/attended) |
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Call Holding / Waiting |
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3-way conference |
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Paging and Intercom |
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Call park / Call pickup / Join call |
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Redial and click to dial |
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Secondary dialing automatically |
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Incoming calls / outgoing calls / missing calls (Each supports 100 records) |
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Phonebook for 500 records |
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SMS and Speed Dial |
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XML phonebook/browser |
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Call Control Features |
Flexible dial map / Hotline / Empty calling no. |
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Reject service / Black list for reject authenticated call |
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White list / Limit cal |
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Do not disturb (DND) |
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Caller ID / CLIR (reject the anonymous call) / CLIP (make a call with anonymous) |
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Dial without register |
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Network Features |
Route and Bridge modes. |
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PPPoE / DHCP client on WAN / LAN |
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802.1 VLAN (voice VLAN / data VLAN) |
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VPN (L2TP) and DMZ |
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Basic NAT and NAPT |
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Main DNS and secondary DNS server |
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DNS Relay, SNTP Client, Firewall, openVPN |
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Management |
Integrated web server provides web-based administration and configuration |
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Telephone keypad configuration via display menu/navigation |
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Automated provisioning and upgrade via HTTPS, HTTP, TFTP |
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User Authentication for configuration pages |
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Local and Remote Syslog (RFC 3164) |
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SNTP Time Synchronization |
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TR069 |
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Environments |
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Power Requirements |
5V DC, 1A |
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IEEE 802.3af |
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Operating Temperature |
0 ~ 40 degrees C |
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Operating Humidity |
10 ~ 65% (non-condensing) |
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Weight |
950 g |
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Dimensions (W x D x H) |
290 x 260 x 60 mm |
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Emission |
CE, FCC, RoHS |
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Connectors |
Two 10/100BASE-T RJ-45 Ethernet ports |
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Handset: RJ-9 connector |
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Headset: RJ-9 connector |
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RJ-11 EXT connector |
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DC power jack |
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Built-in speakerphone and microphone |
