}
if (m_ui->mpBox->isChecked()) {
- opt->addOption("callsign", m_ui->mpCallsign->text().toStdString());
+ std::string callSign = m_ui->mpCallsign->text().toStdString();
+ if (!callSign.empty()) {
+ opt->addOption("callsign", callSign);
+ }
+
QString host = m_ui->mpServerCombo->currentData().toString();
int port = 5000;
if (host == "custom") {