Aastra 6757I - Page 142

134 Model 6757i IP Phone User Guide
Line Keys and Softkeys
Expansion Module Keys
6. Select from “Key 1” through “Key 36” (M670i)
or
Select from “Key 1” through “Key 60” (M675i)
7. In the "Type" field, select Services.
8. (M675i) In the "Label" field, enter a label to apply to this key.
9. Click to save your changes.