Nothing comes to my cell phone voice please !

If you mean you cant hear anything while using it, maybe the volume is down.
If the ringer is silent you might be set to 'silent', 'airplane' mode, or 'vibrate'.
Turn volume up.
Go to your menu.
Disable airplane mode if its on.
Disable vibrate mode.
If these don't work then maybe the mini-speaker connector is loose.
If not that then earphone plug may be oxidized.
Squirt it with a bit of Servisol or other oil-free contact cleaner.