A more thorough explanation:

A quorum call is a procedure used in parliamentary settings to determine if there are enough members present to conduct official business. It involves calling the roll of members and recording their presence or absence.

For example, in the United States Senate, a quorum call is often used to delay or prevent a vote on a particular issue. If a quorum is not present, the Senate cannot conduct official business and the vote must be postponed.

Another example is in a corporate board meeting, where a quorum call is used to ensure that enough members are present to make decisions and take action on behalf of the company.

Overall, a quorum call is an important tool for ensuring that decisions are made by a sufficient number of people and that the outcome is legitimate.