I USE HL854xx MODEL
I SEND MESSAGE AT+CMGS=“mOBILE NIMBER (+918099082702)” BUT THE RESPONSE IS OPERATIONS NOT ALLOWED
+CME ERROR: operation not allowed
I ALSO SET AT+CMGF=1
CAN ANY ONE TELL HOW TO SEND SMS THROW AT COMMAND
M A Khadmi
Can you send the following commands to the unit?
That will give a better idea of what is going on.
PLEASE DON’T SHOUT
Is the SIM valid?
Does your service agreement support sending texts?
If it’s pre-paid, does it have credit?
Does it work if you put the SIM in a different deviec?