Avaya 1603 IP Telephone

The Avaya 1603 IP telephone features a two-row by sixteen-character backlit display, fixed feature buttons (volume up/down, mute, speaker, menu, hold, conference, transfer, drop, redial), a high-quality two-way speakerphone, a message waiting indicator, an integrated headset jack, a single Ethernet port, and eight personalized ring patterns. It supports three-line appearances with dual LEDs, and is desk- or wall-mountable (with an optional wall-mount adapter). The 1603 telephone is firmware upgradeable, powered via 802.3af Power over Ethernet (class two device) or optional local power supply, and includes static or dynamic address assignment. The Avaya 1603 IP telephone is compatible with IP Office R4.2 or higher and Avaya Communication Manager R3.0 or higher.