On 11 February 2012, protests were held against ACTA in more than 200 European cities. On 21 February 2012, a news report noted that many countries in Europe that have signed the treaty have set aside ratification in response to public outcry, effectively hampering the ratification and implementation of the treaty..
Speaker volume to adjust the sound. Slide the pointer up and down for volume, or select the speaker icon at the top of the volume control to mute your speaker. Select the Video button to add video to a Skype for Business call. Select the IM button to add instant messaging to a Skype for Business call.
Make a test call. Skype's free test call is the easiest way to test your sound - it prompts you to record a message, and then plays it back for you to hear. How to make a test call. If you can't hear the voice on the test call, continue to the next step. Check your audio. Try playing a song or using another application with sound.