Display & Interface
- 5-inch Greyscale LCD: High-resolution 800 x 480 widescreen display with backlighting .
- Ergonomic Design: Attractive, traditional telephony-like user experience with a backlit keypad .
Audio & Handsfree
- Wideband Audio (HD Voice): Crystal-clear voice communications using codecs like G.722 .
- Full-Duplex Speakerphone: Digital duplex speakerphone for hands-free calls .
- Headset Support: Includes an RJ-9 headset jack and auxiliary port for Electronic Hook Switch (EHS) control with third-party headsets .
Connectivity & Power
- Dual Gigabit Ethernet Ports: Built-in 10/100/1000 switch for LAN connection and PC pass-through .
- Power over Ethernet (PoE): Supports Class 2 PoE (IEEE 802.3af/at), eliminating the need for a separate power adapter .
Call Handling & Programmability
- 5 Programmable Line Keys: Configurable for multiple directory numbers or calling features like speed dial .
- Fixed Function Keys: One-touch access to Applications, Messaging, Directory, Hold/Resume, Transfer, and Conference .
Security
- Encrypted Communications: Supports signaling and media encryption (SRTP, TLS) for secure calls .
Compatibility & Management
- Cisco Unified Communications Manager: Compatible with CUCM 8.5.1 or later, and CUCM Express 10.0 or later .
- Firmware Upgradable: Supports firmware updates for new features and fixes .
