AASTRA 6757i User Guide EN - Manual (Page 40)

Customizing Your Phone
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41-001385-00 Rev 01 – 06.2013
10. Select DHSG.
11. Select the DHSG is OFF or DHSG is ON option. Default is DHSG is OFF.
12. Press Done to save your selection.
Set Audio
Done -
- Select
1. Audio Mode
2. Headset Mic Volume
3. DHSG
DHSG
Done -
Cancel -
DHSG is OFF
DHSG is ON