He calls upon his friends for help.

The crowd erupted in a chorus of cat-calls as the performer took the stage.

He would often cat-call women on the street.

I received several cold calls yesterday.

When duty calls, you must answer.

I received a phantom call last night.

The company re-calls the defective products.

I am re-calling my childhood memories.

The call originators are responsible for initiating phone calls.

I receive so many nuisance calls every day.