microphone not working on Skype For Business for Mac

I was refering to this answer:

FabianoGoncalves ∙ Sep 25th, 2019 at 4:16am
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First of all, disable SIP protection in your Mac.

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How to turn off System Integrity Protection in macOS

Click the Apple symbol in the Menu bar.

Click Restart…

Hold down Command-R to reboot into Recovery Mode.

Click Utilities.

Select Terminal.

Type csrutil disable.

Press Return or Enter on your keyboard.

Click the Apple symbol in the Menu bar.

Click Restart…

If you later want to start using SIP once again (and you really should), then follow these steps again, except this time you'll enter csrutil enable in the Terminal instead.

To check if it is disabled, execute the command csrutil status

and confirm the message: System Integrity Protection status: disabled.

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After that,

Manually manipulate the security database TCC.db.

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. Open Terminal

. Make a backup copy of the ~/Library/Application\ Support/com.apple.TCC/TCC.db file
. Open the database by giving command:
sudo sqlite3 ~/Library/Application\ Support/com.apple.TCC/TCC.db
. Provide your password when requested Within sqlite3, For Skype for Business audio fix type in command:

INSERT INTO access VALUES('kTCCServiceMicrophone','com.microsoft.SkypeForBusiness',0,1,1,NULL,NULL,NULL,'UNUSED',NULL,0,1541440109);

. If you receive some error on INSERT, try REPLACE sql command below:
REPLACE INTO access VALUES('kTCCServiceMicrophone','com.microsoft.SkypeForBusiness',0,1,1,NULL,NULL,NULL,'UNUSED',NULL,0,1541440109);

. Type .exit to exit the sqlite3

Skype for Business should be visible in the Security & Privacy preferences Privacy-Microphone view
This is not something the user should be required to do, but until the application is fixed, this might be the only way.

Plug your headphones (Ones with microphone inbuilt) in before joining a meeting and it triggers the permission to use microphone notification Once you join