If you come across such a case:

  1. Open the Google Chrome Settings.

  2. Click Privacy and Security.

  3. Click Site Settings.

  4. Click Microphone.

  5. Now make sure:
    • You are using the Recommended settings.
    • You are using the same Microphone as configured there, i.e. headphone, laptop microphone, etc.
    • TeleWise Session URL is not listed under the Block area.

  6. After ensuring the elements of point 5, retry accessing the Join TeleWise Session link again.