hi guys!!!
I need to restric long-distance calls to mobile phones.
user have to dial:
0 0 xx yy znnn-nnnn
- - -- -- ---------
| | | | |____> mobile phone number
| | | |
| | | |___> area code
| | |
| | |___> long-distance service provider code
| |
| |___> long-distance call access...
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