Up to 4 SIP accountsCall hold, mute, DNDOne-touch speed dial, hotlineCall forward, call waiting, call transferRedial, call return, auto answer, direct IP call5-way conferenceGroup listening, SMS, emergency callRing tone selection/provisioningSet date time automatically or manuallyDial plan per accountRTCP-XR (RFC3611), VQ-RTCPXR (RFC6035)Action URL/URIVoice Codecs

HD voice, HD handset, HD speakerCodecs: iLBC, G.722, G.711(A/μ), OpusGSM_FR, G.723, G.729AB, G.726-32DTMF: In-band, RFC 2833, SIP INFOFull-duplex hands-free speakerphone with AECVAD, AGC, CNG, AEC, PLC, AJBDirectoryLocal phonebook up to 1000 entriesXML/LDAP remote phonebookIntelligent search methodPhonebook search/import/exportCall history: dialed/received/missed/forwardedBlack listIP-PBX

Busy Lamp Field (BLF), bridged Line Appearance(BLA)Anonymous call, anonymous call rejectionMessage Waiting Indicator (MWI) , voice mailCall park, call pickupIntercom, pagingMusic on holdHot-desking

and Indicator192x64 pixel graphical LCD with backlightLED for call and message waiting indicationIlluminated LEDs for line status informationIntuitive user interface with icons and soft keysNational language selectionCaller ID with name, numberFeature keys4 line keys with LED4 line keys can be programmed up to12 various features (4-page view)Speaker key/headset key/mute key4 context-sensitive “soft” keys6 navigation keys, volume control keysSpeaker key/headset key/mute key 6 features keys: voice mail, headset, mute,speaker, transfer, redialInterfaceDual-port 10/100M EthernetPower over Ethernet (IEEE 802.3af), class 21xRJ9 (4P4C) handset port1xRJ9 (4P4C) headset portPhysical

Stand with 2 adjustable anglesWall mountableExternal universal AC adapter : AC 100~240V input and DC 5V/1.2A outputPower consumption (PSU): 1.8~4.4WPower consumption (PoE): 2.3~5.3WOperating humidity: 10~95%Operating temperature: -10~50°CManagementConfiguration: browser/LCD-Menu/auto-provisionAuto provision via HTTP/HTTPS FTP/TFTPAuto-provision with PnPReset to factory, restart, rebootLocal tracing log export, system logPhone lock for personal privacy protection

and SecuritySIP v1 (RFC2543), v2 (RFC3261)SIP server/proxy redundancyNAT Traversal: STUN modeDHCP/static/PPPoE/IEEE802.1X/open VPNHTTP/HTTPS web serverTime and date synchronization by SNTPDNS-NAPTR/DNS-SRV(RFC 3263)QoS: 802.1p/Q tagging (VLAN), Layer 3 ToS DSCPTLS(Transport Layer Security), SRTPHTTPS certificate managerAES encryption for configuration fileDigest authentication using MD5/MD5-sessIPv6 supportedPackingQty/CTN: 10 PCSPhone Size:184MM(L)*186MM(W)N.W/CTN: 10.14 KGPhonebox Size:200MM(L)*193MM(W)*102MM(H)G.W/CTN: 11.14 KGCarton Meas: 530MM(L)*420MM(W)*220MM(H)