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