GSM module SIM 900 Problem to send SMS (FIXED VERSION)

[johnwasser]

@paulnowak36

If I have well understood, you advise me to use AT+CMGW instead of AT+CMGS for writing the phone number ?

Oops... Nevermind. I was accidentally looking at the documentation for:
AT+CMGS=">1"
and not:
AT+CMGS="phonenumber"

I think you are using the CMGS command correctly.