Your Mitel office phone will save the handset or headset volume if set to level 1 through level 9. To protect your hearing you cannot set the highest level 10 - this is by design and cannot be changed.

To set and save the volume of your handset or headset:

1. Pick up the handset or headset

2. When you hear the dial tone adjust to level 1 through level 9 via the volume keys at the top right of your phone

3. Hangup