chipseller
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Yes, you are correct. The standard firmware does not support DTMF detection or MMS commands, so you need to upload a version that does. It is posted above
I just want to make sure I am getting this straight. I have an EVB and SIM900 modems. The Firmware that is pre-loaded is Revision:1137B11SIM900M64_ST.....Am I understanding correctly, that in order to access the MMS AT commands....I have to change the firmware? It currently spits out errors when I try to use any of the MMS commands.
Thanks in advance,
Amie