The 2402 supports the following features: 2 call appearance/feature buttons 2-line, 24-character display
The 2410 supports the following features: 5-line, 29-character display 12 call appearances/feature buttons on 2 pages 14 fixed feature buttons
The 2420 supports all of the features of the 2420 with the following differences: Multi-line digital telephone for use with systems running Avaya Communication Manager 7 line x 29 character display
