The Avaya 1603 IP Telephone:

• Designed for Walkup and Everyday user profiles (this telephone is especially practical when used in conjunction with the Avaya IP Softphone).
• Supports 3 line appearances/feature keys.
• The display on the 1603 measures two lines by 16 characters.
   
• Each line button includes dual LEDs (red, green) providing explicit status for the user. For a familiar look and feel, these telephones include several fixed feature keys for common telephone tasks including conference, transfer, drop, hold and mute.
• The display on all phone models is backlit for easier viewing in all lighting conditions.