Auto reply from GSM sim5100b

i'm using Arduino UNO and GSM sim5100b, i wanna test something for short reply from these two device, as i send one simple text message to trigger the program, the GSM will automatically constant reply (continuously reply in "text message") into my mobile phone.. can any suggest a code for this term, just for revision only. I very confuse from my last post.

I'm very2 sorry, me totally NOOB about this, still learning. :disappointed_relieved:

the GSM will automatically constant reply (continuously reply in "text message")  into my mobile phone..

No, it won't. The GSM may repeatedly send data, at some interval. It will NOT continuously send data.