Your audio device may cause an echo

If other people are complaining that they hear an echo when they are on an audio call with you, it might be caused by the audio device you are using. Try the following:

Important: 

• Make sure that the device you are using is optimized for Lync. For a list of optimized devices, see Phones and Devices Qualified for Microsoft Lync.

• Lower your speaker volume to reduce the echo.

• If your microphone or audio device is near a wall or other reflective surface that does not absorb sound, consider moving the microphone or changing its direction away from the reflective surface to reduce potential echoes.

• If you're using your webcam's microphone or your computer speakers, try using a different audio device such as a headset, handset, or standard microphone.

• If possible, try placing the microphone as far away as possible from the computer speakers because audio output from the speakers may feed into the microphone and produce echoes.

• If you are using a laptop with an integrated sound card that supports Microphone Boost, disabling Microphone Boost can help you isolate the issue:

  1. Click Start, and then click Control Panel.

  2. In Control Panel, click Hardware and Sound, and then click Sound.

  3. In the Sound dialog box, on the Recording tab, select your microphone, and then click Properties.

  4. In the Microphone Properties dialog box, on the Levels tab, uncheck the Microphone Boost check box (if available).