Buzzing sound when on the phone

[userCpUEJkT5ey]

When I answer a call the phone gives off a buzzing sound. Like a serge sound  when I am on the phone. It goes away but what is that.  I think I might get electric shock if I answe the phone. No it not on the charger when I answer.  

[tom2055]

Go to settings > sounds and vibration > vibration intensity and toggle off "vibration sounds for incoming calls"

[Charkatak · Accepted solution]

Go to settings, then sound and vibration, then vibration intensity and check if you have " vibration sound for incoming calls" enabled.

[--RuRu]

According to your comments. It didn't help. The buzzing is still present.