AASTRA 4225 for MX-ONE Telephony Switch - Manual (Page 126)

Installation
Dialog 4223 Professional/Dialog 4225 Vision 126
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.
Dialog 4223 Professional:
Dialog 4225 Vision: