As Receiving TCP data after connection is closed (HL7802) mentioned, HL7802 allows users to receive data even though socket is disconnected by remote.
This change allows HL7802 to receive packets in disconnection state.
For BG96, device holds the close URC until receiving all packets, so we don't need to modify for this scenario.
For SARA_R4, device doesn't allow users to receive data if socket is disconnected.
It reports +CME ERROR: Operation not allowed in this scenario.
As Receiving TCP data after connection is closed (HL7802) mentioned, HL7802 allows users to receive data even though socket is disconnected by remote. This change allows HL7802 to receive packets in disconnection state.