GSM module for making phone calls

Hi everyone,
I am wondering if you can help me with this. I need a GSM module that can be integrated with an Arduino board and allow me to make a phone call; please give me a code example of this.

Note: I prefer the GSM module to be cheap so in the future, I can order many of them.
Thank you.

please give me a code example of this.

Which GSM shield/module do you have?

I prefer the GSM module to be cheap

As opposed to reliable, easy to program, etc.?

PaulS:

please give me a code example of this.

Which GSM shield/module do you have?

I haven't bought anything yet so what GSM shield/module do you recommend (it should allow me to make phone calls)?

PaulS:

I prefer the GSM module to be cheap

As opposed to reliable, easy to program, etc.?

For sure reliability and stability comes first then other factors so don't think about cost.

Does Arduino Mega GSM support phone calls?