Future MAX232 question

Hola AtomSoft,

Thanks for your worries about my native language but stay in English. It's better.

When you use a mobile phone to talk to someone, are you talking to your phone or to the guy at the other side?
 
Both actually your talking (in)to your phone and its sending the signal out to another phone. The other guy at the end listens to his phone and talks (in)to his phone. And it repeats.
 
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