I am trying to check the SIM balance using AT commands;
When I surfed the net I found many are finding it using USSD codes, but for this one must know the mobile operator as different operators have different USSD codes.
I want a more universal solution, and then I stumbled across the following commands:
AT+CACM: Accumulated Call Meter Query/Reset
AT+CAOC: Advice of Charge
**So I wanted to know is there any difference between SIM balance(like talk time balance) and Accumulated Charge?? **
Also, does the above commands give the same SIM balance as what we get using USSD codes?
Thanks in Advance!