I had just recently received an e-mail from my half-sister regarding this this phone scam. According to reports, a person would receive a call where the caller idetifies himself as a telephone representative that needs to check a problem with the lines. The person would be asked to press either 90# or #90 and then hang up. What actually happens is that would give the caller permission to use that specific phone line to place long distance calls. Now, while this is true, there is a bit of fallacy to this scam. This will only affect business, government, etc. phone lines where a person must dial a 9 in order to place an outside call. It also will only affect those lines that allow long-distance calls. It will not affect residential or cell phones. To verify this, please go to:
http://www.snopes.com/fraud/telephone/jailcall.asp
This has been circulating for a while so I felt maybe those that have received it should know the full facts regarding the scam.