SARA-R4/N4 series-AT Commands Manual
UBX-17003787 - R09
2General operation
Page 18 of 307
transmit the buffered URCs. Otherwise the collision of the URCs with the subsequent AT command is
still possible.
In case multiple AT interfaces are available, it should be advisable to use one of the different AT interfaces
to manage all the user enabled URCs, while use the others ones to send AT commands and receive their
responses.
Anyway URCs related to external causes (e.g. RING) are issued on all interfaces.
2.2.6Intermediate Result Code (IRC)
An intermediate result code is a string message (provided by the DCE) which provides to the DTE some
information about the processing status of the pending AT command.
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