How to change Gian settings from system option of TK920+.
1. Log in to your PhoneMDM account at phonemdm.com.
2. Click the below shown Icon to get into the settings of the required device.
3. After accessing the device configuration settings, select the System option, which is the Seventeenth section on the left side.
4. In the System page, you can access options such as Gain, Local Time, Voice Echo Cancellation, Voice Jitter Buffer and Volume. Click on Gain to access the Gain page and make necessary changes.
5. In the Gain settings, you have the following options:
- Handfree Send: Adjust the gain level for the hands-free microphone. (Example: 6)
- Handset Send: Adjust the gain level for the handset microphone. (Example: 6)
- Headset Send: Adjust the gain level for the headset microphone. (Example: 6)
6. After entering all the required data in Gian Options, click on the Save button to save the changes.

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