Features2 row x 16 character backlit displaySupports 3-line appearances with dual LEDsFixed feature buttons include volume up/down, mute, speaker, menu, hold, conference, transfer, drop, redialHigh-quality 2-way speakerphoneMessage waiting indicatorIntegrated headset jackReversible wedge stand for desktop and wall-mount useFirmware upgradeable8 personalized ring patternsSingle Ethernet portStatic or dynamic address assignmentPower Requirements CompatibilityThe Avaya 1603 IP phone is compatible with IP Office R4.2 or higherAvaya Communication Manager R3.0 or higherIncludes RefurbishedLibrary Avaya 1603 1603SW 1603-I 1603SW I IP User Guide.pdf
