Designed for walk-up users in building lobbies and other public spaces, the 1603 supports three line appearances/feature keys, each with dual LEDs to show status. Fixed feature keys include conference, transfer, drop, hold, mute, and a 2-way speakerphone.
- Backlit display
- Single Ethernet (10/100) line interface
- Volume button – (separate volume levels in the handset, speaker, and ringer)
- Optional IEEE PoE 802.3af adapter registers as class 1 device
- Hearing aid-compatible
- Supports the following languages: English, French, Spanish, German, Italian, Dutch, Portuguese, and Russian