Up to 12 SIP accountsCall hold, mute, DNDOne-touch speed dial, hotlineCall forward, call waiting, call transferRedial, call return, auto answer, direct IP call5-way conferencingXML Browser, action URL/URIGroup listening, SMS, emergency callRing tone selection/provisioningSet date time automatically or manuallyDial plan per accountRTCP-XR (RFC3611), VQ-RTCPXR (RFC6035)Voice 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 Indicator3.5" 480 x 320-pixel color display with backlight16 bit depth colorLED for call and message waiting indicationDual-color (red or green) illuminatedLEDs for line status informationWallpaper, national language selectionIntuitive user interface with icons and soft keysCaller ID with name, number and photoFeature keys8 line keys with LEDPaperless DSS keys up to 36 various features8 feature keys: voice mail, headset, mute,speaker, conference, hold, transfer,redial4 context-sensitive “soft” keys6 navigation keys , volume control keysIlluminated speaker key/headset key/mute keyInterfaceDual-port Gigabit EthernetPower over Ethernet (IEEE 802.3af), class 31xRJ9 (4P4C) handset port1xRJ9 (4P4C) headset port1xRJ12 EXT port supports up to 6 Expansion ModulesPhysical

Stand with 3 adjustable angles(30°, 45°， 60°）Wall mountableAC adapter : 100~240V input and DC 5V/1.2A outputPower consumption (PSU): 2.0~4.6WPower consumption (PoE): 2.5~5.5WOperating 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:224MM(L)*220MM(W)N.W/CTN: 14.16 KGPhonebox Size:245MM(L)*225MM(W)*100MM(H)G.W/CTN: 15.16 KGCarton Meas: 525MM(L)*510MM(W)*245MM(H)