- Deluxe LCD display speakerphone - SIP 2.0 compatible (field upgradeable) - Eleven (M1-M11) programmable speed dial/function keys - Single line configuration - Redial, mute, & hold feature keys - Soft key technology - Dual-Port 10/100Mb switched ethernet ports for laptop high speed internet connection - On-Hook pre-dialing on memory keys - Industrial grade construction with matte finish design - 2 Year manufacturer"s ?no-hassle? Warranty - Non-slip base - Wide-View backlit LCD screen display - Exceptional quality speakerphone - Built-in headset amplifier - Large, bright red, message waiting lamp - Multi step speaker, headset and handset volume control - Three way conference calling - Headset on/off key - One-touch, touchLite message retrieval - Memory key entry - maximum 30 Digits - Sixteen (16) Pre-defined hard and LCD control keys - up, down, SYS/IP, enter, exit, menu, del (delete), call log, FWD (forward), redial, phone book, hold, DND, mute, headset on/off, speaker - Dual-Port 10/100Mb switched Ethernet Ports for HSIA - Supports IEEE 8.2.1 p/g for Quality of Service / VLAN Priority Tagging - 2.5W = Class 1 - Accepts Standard Based (IEEE 802.3 af) Power over Ethernet - Compression support G.711, G.729 - Encription 128-bit AES - RCF 3261 SIP 2.0 - SIP Trunkside integration - Asterisk platform compliant and NEC spere compliant - Black TLM195551IP