Atcom AT840P 4 lines ip phone with poe,support sip protocol,hd voice,vlan,l2tp

NOTA: Adaptador de corriente no incluido AT840P is a user friendly, rich function &#12289,HD voice quality with PoE multi-line IP phone. IP Phone supports 9~109 multi function keys can be achieved BLF function.support multi language. Because of the good compatibility with all kinds of standard SIP softswitch and IP PBX system, it is the best choice of VoIP service based on broadband for SMB market. Display LCD Display 128 x 64 dot matrix LCD LCD Size 3.2" LCD Comtrast 6 levels LCD Backlight Yes SIP Features SIP Accounts 4 SIP Compatibility SIP v1 (RFC2543), v2 (RFC3261),Asterisk,Broadsoft, ATCOM IP PBX Install Option Desk Mount Yes Wall Mount No Audio Features Ringtones 10 + 2 user define Ringer Volume 8 levels + off Audio Codec G.711(A/&#956,),G.722(Wideband),G.726,G.729AB,iLBC Keys Features Programmable Keys 9 Features Keys 4 features keys (Mute, Headset, hands-free speakerphone, Message) Line LED Keys 4 Volume Control Keys 2 Context Sensitive Soft Keys 4 Navigation Keys 5 Software Features Phone Book (Entries) 100 Call Log Entries 100 Dialed calls + 100 Answered Calls + 100 Missed Calls Conferncing 3 parties Music On Hold Supplied by Host Service (PBX/SIP Server) Network Features IP Version IPv4 IP Assignment Yes ( Static / DHCP / PPPoE ) DNS Yes ( Primary and Secondary DNS supported ) HTTP Yes SNTP Client Yes VLAN (802.1Q) Yes QoS (DiffServ) Yes VPN Yes (L2TP VPN supported) NAT Transverse Yes (STUN mode) Security Yes (SRTP / TLS supported) Configuration Plug & Play Configuration Server based configuration Manual Configuration InternalWeb Configurator, Local (LCD based) network Configuration Auto Provision TFTP / FTP / HTTP / PnP Interface Ethernet Ports 2 10 / 100 Mbps RJ45 Extension Module Port 1 (Up to 5x Paper Extension Modules) PoE (Power over Ethernet) IEEE 802.3af Class 2 standard compliant Headset Jack 1 RJ9 Handset Jack 1 RJ9 Power adapter Jack 3.5mm,DC 12V ,500mA Others Power Consumption 5W Operating Humidity 10 - 90% Operating Environment 0°C - 45°C (32°F - 113°F) Dimension(W * D * H) 18.5*23.8*11.8 Weight (KG) 1.30