Hiii, I would like to know how is a cell phone call transmitted from the caller cell phone to the destination with all the steps which the signal passes through and whether the placed call was local one or international call ? ( I have that for a project work in my school could I get some help please ?:confused:?

Here is a link which will help you in understanding cellular telephone basic operations.

I really thank you , that was really helpful :)

I'm glad to be of assistance to you.