I have tried all 3 commands and every command returns an error.
Please let me know if there is any other procedure for detaching GPRS.
Also, I am unable to send outgoing calls and receive any incoming calls.
It says NO CARRIER.
Please let me know the solution.
Thanks & Regards,
Topic moved to correct section
I don’t know which three commands you have tried. But from my (very limited) experience
with HL8548 the following command will detach GPRS.
NOTE: There is an error in the AT command manual (v7 at least), the arguments in the
manual are swapped - i.e AT+CGACT command has standard AT command interface.