Specification Highlights HD Voice Up to 3 SIP Accounts 2.3'' 132*64 Graphical LCD with Backlight Support 3-way Conference Support PoE 2 Gigabit Ethernet Ports Full Compatible with Asterisk, BroadSoft Platform Phone Features 3 Line (Support 3 SIP account) Support Call Waiting, Call Forward, Call Transfer Call on Hold, Mute, Auto-answer, Redial, DND Local 3-Way Conference Volume Adjustable, Ring tones Selectable Speed Dial, Hotline Multicast Paging Daylight Saving Time Country Ringtone Signal Direct IP call Auto Redial, Call Return Dial Plan XML Browser Action URL/URI Phonebook (500 entries), Blacklist (100 entries),Call logs (100 entries) 5 Remote Phone Book URL Supported LDAP Multi-Language Support Support Wireless Headsets Adapter IP-PBX Features SMS, MWI Music on hold, Intercom BLF(Busy Lamp Field) Call Pickup, Group Call Pickup Hot Desking Call Recording Call Completion Anonymous Call, Anonymous Call Rejection Audio Features HD Voice: HD Handset, HD Speaker Wideband Codec: G.722 Narrowband Codec: PCMA, PCMU, G.729, G723_53, G723_63, G726_16,G726_24, G726_32, G726_40 VAD, CNG , Echo Canceller PLC, AJB, AGC Full-Duplex Hands-free Speakerphone with AEC Administration Features 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