'Shakedown’ of Businesses?

Letters are going to businesses in southern California asking them to buy equipment such as a TTY and video phone. The letters are coming from the Orange County Deaf Advocacy Center and a local newspaper suggests this could be considered a "shakedown" and compares the notices to a controversy over handicapped parking last year that some called outright "extortion." Do you think this is a legitimate way to inform businesses about their responsibilities under ADA law or is it just a way to scare businesses into buying equipment? Read the full story here.