Was sent this warning. Good thing to watch for! It is true. I checked with AT&T today.
It's best to be forwarned...
Got a call last night from an individual identifying himself as an AT&T
Service technician who was conducting a test on our telephone lines. He
stated that to complete the test I should touch nine (9), zero (0), the
pound sign (#) and then hang up.
Luckily, I was suspicious and refused. Upon contacting the telephone
company, I was informed that by pushing 90#, you give the requesting
individual full access to your telephone line, which allows them to
place long distance telephone calls billed to your home phone number. I was
further informed that this scam has been originating from many of the local
jails/prisons. I have also verified this information with UCB telecomm,
Pacific Bell, MCI, Bell Atlantic, GTE and NYNEX.
Please beware. DO NOT press 90# for ANYONE. The GTE Security
Department requested that I share this information with EVERYONE I KNOW. PLEASE
pass this on to everyone YOU know. If you have mailing lists and/or
newsletters from organizations you are connected with, I encourage you to pass on
this information to them, too.