In the example program only normal calls are used, so all the information will be on a single stack.

The old call back number was 199, and could be used on public pay phones, and private numbers too.

A central area of confusion was whether 911 calls could be used in court.

Begging calls are used by the young when soliciting food from their parents.

Different calls may be used for predators on the ground or from the air.

What was that strange call to arms the Band used?

The call for special deposits was used on fifteen occasions between June 1960 and the end of 1966.

We also support the call for clear definitions of employment status to be used.

The call is used in flight, courtship or when disturbed.

Authorities would later say they believed the calls were used to coordinate parts of the escape.