Rana,
It likely means that the phone is either turned off or in a non coverage area. Sorry for not paying enough attention when reading your first post. If you want, I can try dialing this number for you just to see if I get the same “number is not available message” (if you want to do this send me the number using the contact button at the top right).
Regarding the phone card. I really can’t tell, but some cards charge before the call is connected.