Executive SIP Desktop Phone Support for up to 24 lines with 2 dedicated LED line keys 7" 800x480 pixel color LCD touch display Icon-based navigation menus Programmable Soft Keys: 48 (4 pages of 12) Context Sensitive Soft Keys: 30 (6 pages of 5) IETF SIP (RFC3261) HD wideband audio Audio Codecs: , , . AMR, AMR-WB (), , iLBC, L16 Echo cancellation Enhanced wideband speakerphone Powered USB port and embedded Bluetooth 4.0 wireless provide multiple headset options Hold Redial Mute Message waiting indicator Transport Layer Security (TLS) Phone lock with PIN Secure Real-Time Protocol (SRTP) Dynamic phone configuration with XML API Multilingual Support: English, French, Spanish, Italian, German, Nordic, Russian, Portuguese, Greek Dual switched Gigabit Ethernet ports PoE Class 3 (power supply sold separately) Adjustable 2-angle stand Supports up to 3 expansion modules (M685 LCD, M680 Paper)
