Hardware Features • Pixel-based display: 128 x 64 monochrome LCD graphical display • Dedicated illuminated buttons for: – Audio mute on/off – Headset on/off – Speakerphone on/off • Four-way rocking directional knob for menu navigation • Voicemail message waiting indicator light • Voicemail message retrieval button • Dedicated hold button • Settings button for access to feature, setup, and configuration menus • Volume control rocking up/down knob controls handset, headset, speaker, ringer • Standard 12-button dialing pad • High-quality handset and cradle • Built-in high-quality microphone and speaker • Headset jack: 2.5 mm • LED test function • Two Ethernet LAN ports with integrated Ethernet switch: 10/100BASE-T RJ-45 • 5 VDC universal (100-240V) switching included Telephony Features • Three voice lines • Pixel-based display: 128 x 64 monochrome graphical liquid crystal display (LCD) • Line status: active line indication, name and number • Menu-driven user interface • Shared line appearance* • Speakerphone • Call hold • Music on hold* • Call waiting • Caller ID name and number • Outbound caller ID blocking • Call transfer: attended and blind • Three-way call conferencing with local mixing • Multiparty conferencing via external conference bridge • Automatic redial of last calling and last called numbers • On-hook dialing • Call pickup: selective and group* • Call park and unpark* • Call swap • Call back on busy** • Call blocking: anonymous and selective • Call forwarding: unconditional, no answer, and on busy • Hot line and warm line automatic calling • Call logs (60 entries each): made, answered, and missed calls • Redial from call logs • Personal directory with auto-dial (100 entries) • Do not disturb • Digits dialed with number auto-completion • Anonymous caller blocking • Support for Uniform Resource Identifier (URI) (IP) dialing (vanity numbers) • On-hook default audio configuration (speakerphone and headset) • Multiple ring tones with selectable ring tone per line • Called number with directory name matching • Ability to call number using name: directory matching or via caller ID • Subsequent incoming calls show calling name and number • Date and time with support for intelligent daylight savings • Call duration and start time stored in call logs • Call timer • Name and identity (text) displayed at startup • Distinctive ringing based on calling and called number • 10 user-downloadable ring tones • Speed dialing, eight entries • Configurable dial/numbering plan support • Intercom* • Group paging • Network Address Translation (NAT) traversal, including Serial Tunnel (STUN) support • DNS SRV and multiple A records for proxy lookup and proxy redundancy • Syslog, debug, report generation, and event logging • Support for highly secure encrypted voice communications • Built-in web server for administration and configuration with multiple security levels • Automated remote provisioning, multiple methods; up to 256 bit encryption (HTTP, HTTPS, Trivial File Transfer Protocol [TFTP]) • Option to require administrator password to reset unit to factory defaults **Feature requires support by call server. **Feature activated via feature code.