AASTRA 4425 IP Vision (SIP) for MX-ONE User Guide - Manual (Page 102)

103 Dialog 4425 IP Vision
Accessories
Accessories
Key panel
Your phone can be equipped with 1-4 additional key panels (type
DBY 419 01). Each key panel offers 17 additional keys for storing of
your most frequently used telephone numbers and features, and
for monitoring extensions. To install the key panel, see section
“ Installation ” on page 121.
Use the DCM (Designation Card Manager) to make and print your
own key panel designation cards. DCM is included on the
Enterprise Telephone Toolbox CD or it can be downloaded from:
http://www.aastra.com
For more information, please contact your Aastra Certified Sales
Partner.