The 1600 Series IP Telephones - Avaya one-X Deskphone Value Edition is a family of cost-effective IP telephones that deliver familiar features at an attractive price point for customers with basic communications needs. Combining the features of traditional telephones and the latest in telephone user experience, 1600 Series IP Telephones - Avaya one-X Deskphone Value Edition telephones provide critical capabilities not often found in competitively priced models.

The Avaya 1603 IP Telephone is designed for walkup and everyday user profiles. It supports 3 line appearances / feature keys. The display on the 1603 measures two lines by 16 characters.