* Corded Phone * Voice Over Internet Protocol (VoIP) * Session Initiation Protocol (SIP) Enabler Protocol for Telephony & Voice Over IP (VoIP) Services * 1-10 Line Operation * Caller ID * 3-Way Conferencing * 248x68 Graphical LCD Display Adjustable White LED Backlight * LED For Call & Message Waiting Indicator * Backlit Keypad * 100 Station Phone Directory / Dialer * 10 Station Speed Dial * Adjustable Speakerphone / Handset Volume Control * Call Transfer * Redial * Hold * Mute * Date / Time Display * Navigation Keys * Two-Port 10/100 Mbps Ethernet Switch * Modular RJ9 Headset Connector Compatible w/ Amplified Business Headsets * Multilingual Menu Support (English, French, Spanish, Italian, & German)