Programmable Keys
4. Select from "Key 1" through "Key 6"
5. In the "Type" field, select None.
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 None.
8. Click
148
to save your changes.
Model 6755i IP Phone User Guide