MrsDoyle, 8 months ago It was a build-up of something or other (carbon?) on the microphone part of the caller’s handset. You could fix it by tapping the handset sharply on a hard surface. Source: I used to work in radio back in the 80s.
It was a build-up of something or other (carbon?) on the microphone part of the caller’s handset. You could fix it by tapping the handset sharply on a hard surface. Source: I used to work in radio back in the 80s.