Before you dial a "10-10" number, Call 4 Action reporter Susan Koeppen says you should know that not everyone gets a great deal.

Some people said they were overcharged by hundreds of dollars. They complained and were told that their local phone companies didn't route the calls properly.

Experts suggest using a "10-10" number one time, for one long-distance call, and see what happens when you get the bill. If the price is right, continue using the number. If not, call the company and complain.

Get more information at 1010phonerates.com.