I receive somes frame on serial port:
+WIND :3 (is it related to <event> from document AT_Command_Interface_Guide page 141)
I try to send sms with function:
It has no effect,
Do we need to write like this
Do you have an example which works?
For closer details to the message sending command please have a look into GPRS modules documentation (AT_Command_Interface_Guide.pdf chapter "Send Message +CMGS").
I'm not sure if you've replaced any digit of the number you try to send with a 'x' but if so you might try to
The behavior of the AT-Firmware might be unexpected if there is an '\0' at the end of the destination address while it ignores an additional '\r'.