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How to send SMS message
There are two ways how to send SMS message to GSM network. Sending messages via
the module directly to the GSM network, or sending messages to memory of the module
and then by command to send to the GSM network.
Sending messages via the module directly to the GSM network
1. You are able to choose if you like to use text mode or PDU mode (Hexadecimal code)
2. Use at+cmgf? To check what mode you are in.
To switch mode to:
PDU at+cmgf=0
text at+cmgf=1
3. Use at+cmgs="phone number of receiving side" to send message straight away
to GSM network. Press "Enter".
4. You will get this sign ">" that means you can start to write text of SMS message.
Press "CTRL+Z", to send SMS message to network. You can see example on (Pic. 3).
Pic. 3