AASTRA 4225 Vision for MX-ONE (TSE) User Guide EN - Manual (Page 110)

Accessories
Dialog 4223 Professional/Dialog 4225 Vision 110
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
supervising extensions. To install the key panel, see section
“
Installation ” on page 117.
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.