Echo on Galaxy Note 5 solved

[MikeMardis]

Symptom was that the person on the other end of my calls heard their voice echo.  I found that the problem only occurred with one of my headsets.  No problem with a different headset and no problem when I had no headset connected.

After spending two days in various forums I found that I could stop the echo problem by turning off Advanced Calling.

SETTINGS=>ADVANCED CALLING=>ADVANCED CALLING=>HD VOICE (remove the green check).

[bearone21]

glad you figured it out