Bhanot not here

The year was 1950 and we were junior editors in the news room of All India Radio. Our boss, Mr. Bhanot, a veteran journalist, was a bit of a bully who was fond of shouting at the juniors. He would go through our copy and point out mistakes in not very civil language. We were all afraid of him and avoided him as best as we could and he enjoyed being a bit of scare. Bhatacharya, a Bengali editor, who was not very bright, used to come in for special attention from Mr. Bhanot.
One day there was a ring in the newsroom. Bhanot wanted to speak to Bhatachrya. A colleague handed the phone to Bhatacharya saying “your phone.”
Bhatachrya took the phone and said “Hello.”
The caller said “Bhanot here, why ….”
Bhatachrya said “ Bhanot not here” and hung up.
After a couple minutes the phone again rang again. This time Bhatacharya picked up and said ”hello.”
Bhanot who was fuming shouted, “I told you Bhanot here.”
Without a ripple Bhatacharya said, “But I told you Bhanot not here” and hung up.