@ -784,7 +784,7 @@ bool CModem::setConfig()
buffer[3U] |= 0x02U;
if (m_pttInvert)
buffer[3U] |= 0x04U;
if (m_duplex)
if (!m_duplex)
buffer[3U] |= 0x80U;
buffer[4U] = 0x00U;