What does the Debt Collector have to tell me about my debt?

Debt Collection Agency Requirements under FDCPA

Debt collectors must send you a written notification with in five days after their initial contact with you. The notification must describe: the creditor's name, the amount of money you owe and information about how to dispute any of the debt the collector is trying to collect. The notification must make it clear that it is from the debt collector and that they are gathering information to use in the debt collection process.