Installation and first-time operation
Aastra 5370/Aastra 5370ip 125
eud-1281/1.3 – R3.0 – 04.2013
Labelling the Aastra M530 expansion key module
Write-on labels for the configurable keys can be found on the Aastra 400 DocFinder. 
You can fill out the fields directly on your PC and then print out the labels.
• Label the write-on labels on the PC, print them (“Page scaling for printing: none“) 
and cut them out.
• Carefully remove the transparent cover next to the configurable keys.
• Place the write-on labels into the recesses next to the configurable keys.
• Carefully replace the transparent cover.