Screen Gray scale LCD with background light 128*32 character Language Support Multi-Module Line 2 Function Keys 6 Navigation keys (Arrow button, OK button, C button) Volume button (multiplex up and down keys) Hands-free, Mute, Headset, Message, Menu, Hold, Redial, Conference, Transfer VoIP Protocol SIP 2.0 Network Protocol HTTP, BOOTP, FTP, TFTP, IEEE 802.1Q, *IEEE 802.1X Codec G.723.1, G.729 A/B, G.711 A/U, G.722 QoS TOS, Jiffer Buffer, VAD, CNG, G.168 (32ms) Network 2¡ÁRJ-45 10/100M Ethernet Interfaces (LAN/PC) IP Assignment: static IP, DHCP, PPPoE DNS Client, VPN (L2TP), VLAN/QoS Speech HD Voice: HD Codec/Handset/Speaker(Full-duplex) Handle, Headset and Hands-free model available Support call centre by headsets Separated 9 Level Volume Adjustment Call Processing Always Forward, Busy Forward, No-answer Forward Hotline line (Immediately/Delay) Call Waiting, Call Queuing Call Forward, Call Transfer, Call Holding, Call Pickup, *Callback Redial Phone directory speed dial, Call record direct dial 3-way conference DnD, *Blacklist, SMS Voice mail, Voice Prompt, Voice Message Application Enterprise phone directory XML Phonebook Private phone directory Security Login the website by password Signaling encryption Media encryption Management Upgrade: HTTP/TFTP/FTP Auto-provision/TR069 Configurations: Phone/Http/Auto provision/TR069 Debug: Telnet/Phone/Web Power Supply Power adapter: AC100~240V input and DC 5V/1A output PoE (IEEE 802.af) Specification Storage Temperature: 0¡æ ~ 60¡æ Operating Humidity: 10%~90% Size: 335mm*219mm*68mm Net weight: 1.07kg Package Features Qty/CTN: 10 PCS N.W/CTN: 10.7kg G.W/CTN: 11.2kg Measurement: 0.055CBM Carton Measurement: 460mm*350mm*355mm