The Avaya 1603-I is a three line IP phone that is great for common areas, break rooms, and warehouse applications. It is a good choice for users with lower call volumes.
2 row x 16 character white backlit display
Supports 3-line appearances with dual LEDs Fixed feature buttons include volume up/down, mute, speaker, menu, hold, conference, transfer, drop, redial
High-quality 2-way speakerphone
Message waiting indicator
Integrated headset jack
Reversible wedge stand for desktop and wall-mount use
Firmware upgradeable
8 personalized ring patterns
Single Ethernet port Static or dynamic address assignment
Powered via 802.3af Power over Ethernet when equipped with optional in-stand splitter or optional 5V local power supply (not included)
Compatible with IP Office 6.0 or higher and Avaya Communication Manager 3.0 or higher