only few SMS-STATUS REPORTs received

IoT Modules MC/EM Series
1

Hello,
I am using MC7304 for sending SMS-SUBMIT messages and receiving their corresponding SMS-STATUS-REPORTs (delivery,failure)
Everything works correctly for a while, but at some point the SMS-STATUS-REPORTs stop being received. The modem doesn’t recover unless is restarted (power off/on). Not sure what causes this error - it looks like a buffer is filled and SRs are blocked.
Details:
1)sending:
AT+CMGS=
…SMS-SUBMIT body. (PDU format) …
2)receiving:
+CMGS:
OK
+CDS:
…SMS-STATUS-REPORT body (PDU format)
=> at some point (without changing anything), +CDS no longer arrives.

Any suggestion?
Thanks,

2

Hi,

This problem needs a detailed technical analysis. Please contact your Technical support in SWI to provide you the solution.

Thanks & Regards,
Moderator