What does on call mean in jury duty?

Being "on call" for jury duty means that a juror is not required to appear in court every day but must remain available to serve if needed. Jurors may be instructed to check in periodically, either by phone or online, to determine if they are required to report. This system helps manage court resources while ensuring that jurors can be summoned as needed. Failure to respond or appear when called may result in penalties.