AASTRA 4222 Office for MX-ONE (TSE) User Guide EN - Manual (Page 86)

Installation
Dialog 4220 Lite/Dialog 4222 Office 86
Install card
Use the DCM (Designation Card Manager) to make and print your own
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.