• 16 Lines (Support 16 Sip Accounts)
• Support Call Waiting, Call Forward, Call Transfer, Camp-On
• Call On Hold, Mute, Auto-Answer, Redial
• Do Not Disturb (DND)
• Local 5-Way Conference
• Volume Adjustable, Ring Tones Selectable/Import/Delete
• One Touch Speed Dial, Hotline
• Daylight Saving Time
• Network Packet Capture
• Country Ringtone Signal
• Direct Ip Call
• Auto Redial, Call Return
• Dial Plan For Each Account
• Xml Browser
• Hot Desking
• Keypad Lock
• Action Url/Uri
• Phonebook – 8000 Entries
• 5 Remote Phone Book URL Supported
• Support Xml/Ldap Remote Phonebook With Intelligent Search
• Phonebook Search/Import/Export
• Call History: 2000 Entries  (Dialed/Received/Missed/Forwarded)
• Black List
• Multi-Language Support
• Caller Id With Name, Number And Photo
• Support Up To 6 Expansion Modules
• Support Wireless Headset Adapter
• Usb Port (2.0 Compliant) For:
• -USB Call Recording Through USB Flash Drive
• -USB Storage (Screen Saver, Wallpaper)
• -USB Headset
• Wall Paper
•  

• HD Voice: HD Handset, HD Speaker
• Wideband Codec: G.722, iLBC
• Narrowband Codec: G.711a, G.711u, G723, G726, G.729AB
• VAD, CNG, Echo Canceller
• AEC, VAD, AGC, CNG, PLC, AJB
• Full-Duplex Hands-Free Speakerphone With AEC

• SMS
• Voicemail
• MWI
• Music On Hold
• Intercom
• Paging
• Busy Lamp Field (BLF)
• Bridged Line Appearance (BLA)
• Call Pickup
• Group Call Pickup
• Call Recording
• Call Completion
• Anonymous Call
• Anonymous Call Rejection
• Break-In/Out
• Group Listening
• Emergency Call
• Voice Mail
• Hot-Desking
• AUTO PROVISIONING USING FTP / TFTP / HTTP / HTTPS / PnP
• Dial Through IP PBX Using Phone Number
• Dial Through IP PBX Using URL Address
• Configuration Managements With Web, Keypad On The Phone And Auto Provisioning
• SNMP
• TR069
• Package Tracing Export, System Log
• Factory Default
• Soft Reset/Reboot
• Phone Lock

• IPV4 & IPV6 Support
• SIP V1(RFC2543), V2(RFC3261)
• SIP Server/Proxy Redundancy
• Nat Transverse: STUN Mode
• Static IP/DHCP for IP Configuration
• 3 DTMF Modes: IN-BAND, RFC2833, SIP INFO
• HTTP/HTTPS Web Server For Management
• Proxy Mode And Peer-To-Peer SIP Link Mode
• SNTP for Auto Time Setting
• UDP/TCP/DNS-Srv (RFC3263)
• TFTP/FTP/HTTP/HTTPS Protocols
• 802.1 VLAN
• DNS-NAPTR/DNS-SRV(RFC 3263) 
• QoS: 802.1P/Q Tagging (VLAN), Layer 3 ToS DSCP
• Transport Layer Security (TLS1.2), SRTP, ZRTP
• HTTPs Certificate Manager
• AES Encryption For Configuration File
• Digest Authentication Using MD5/MD5-Sess
• IEEE802.1X
• OpenVPN
• LLDP/CDP/DHCP VLAN
• RTCP-XR (RFC3611), VQ-RTCPXR (RFC6035)

SECURITY FEATURES

• Support HTTPS (SSL)
• Support SRTP For Voice Data Encryption
• Support Login For Administration
• OpenVPN, IEEE802.1x
• Digest Authentication Using Md5/Md5-Sess
• AES Encryption For Configuration File
• SIP Over TLS (SoTLS)

WIRELESS CONNECTIVITY

Wi-Fi

• Built-In Dual Band Wi-Fi: 2.4ghz/5ghz
• Network Standard: IEEE802.11a/B/G/N/Ac
• Transmission Rate: Up To 400 Mbps

• V4.2 

• 4.3″ 480×272 Pixel Colour Display With Backlite 
• Acrylic Cover
• 22 Multi Purpose Programmable BLF/DSS Keys
• 10 Line Keys Can Be Programmed Up To 36 Paperless DSS Keys (4-Page View)
• 53 Keys (With 4 Context-Sensitive Soft Keys )
• 6 Navigation Keys (Include Cancel Key) And Volume Control Keys
• 23 LED Lights (1 Power Light, 22 Dual-Color Leds On Keys)
• Adjustable Stand -2 Adjustable Angles
• Wall Mount
• 360 Degrees Visual Notification Of Ring & MWI
• 2*RJ45 10/100/1000Mbps Ethernet Ports
• 1*RJ9 (4P4C) Handset Port
• 1*RJ9 (4P4C) Headset Port
• 1*RJ12 (6P6C) Port For Expansion Module – IPDSS22
• 1xUSB Port (2.0 Compliant)
• External AC Power Adapter:  Input: AC 100-240A, Output: DC 5V/2A
• PoE: IEEE 802.3af, CLASS 3, IEEE 802.3az Green Energy Efficient Ethernet
• Operating Humidity: 10~95%
• Power Consumption (Psu): 2.0~4.6w
• Power Consumption (Poe): 2.5~5.5w
• Operating Humidity: 10~95%
• Operating Temperature: -10~50°C

PACKAGE FEATURES

• Package Content:
• Phone Device*1pcs
• Foot stand*1pcs
• Handset*1pcs
• Handset Cord*1pcs
• Ethernet Cable*1pcs
• Power Adapter (Optional)