The number to your prefix's Intercept operator(do some scanning for
this one)
How To:
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After you find the number to the intercept operator in your prefix,
use your call-forwarding and forward all calls to her. This will make your
phone stay off the hook (actually it now waits for a quarter to be dropped
in). You now have a cheese box.
In Order To Call Out On This Line: You must use your Red Box tones and generate the quarter dropping in. Then you can make phone calls to people. As far as I know, this is fairly safe, and they do not check much.