Don't fall for the 90# telephone scam
I'd never fall for this (I hope) because our only "wired" number is through the Internet, not AT&T or any major provider.
Here's a link to the FCC's page: http://www.fcc.gov/guides/
"I received a telephone call last evening from an individual identifying himself as an AT&T Service Technician (could also be Telus) who was conducting a test on the 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.
Similar posts elsewhere on the Internet