AASTRA 4223 Professional for BusinessPhone User Guide - Manual (Page 122)

Installation
BusinessPhone — Dialog 4223 Professional / Dialog 3213 122
Stand positioning (1-4 key panels)
Install card
Use the Designation Card Manager to make and print your own key
panel designation cards. The Designation Card Manager is
included on the Enterprise Telephone Toolbox CD. For questions
regarding the product, please contact your Aastra Certified Sales
Partner.