Installation manual

Hardware overview/installation IVX C-Class Installation Manual
B.2
Digital Feature Phone models
IVX C-Class supports two different models of ESI Digital Feature Phones:
24-Key Digital Feature Phone — Two-line, 32-character display; speakerphone; 12 programmable
feature keys.
12-Key Feature Phone — One-line, 16-character display; nine programmable feature keys.
Each model connects to the cabinet via standard two-wire twisted pair.
Note: Use the wall hook located under the handset when the phone is in the most upright position to keep the
handset in place.
Feature Phone overlays
Each ESI Phone comes with one overlay for the programmable feature keys. To order additional
overlays, visit the DESI™ website at www.desi.com. You can also download the free Windows-based
software, DESI Lite, which allows you to print on the overlays. For assistance with DESI products,
please consult the DESI website.