IPC1 QCRBs (Carrier Response to Kernel) Table 1. IPC1 QCRB Parameter Usage (Carrier Response to Kernel) Index QOpen QSend QSendB QSendR QReply QClose 1 rc (note 11) rc rc rc rc rc 2 re re re re re re 3 cqt (note 2) - - - - - 4..16 - - - - - -