Jim, I don't have all the answers. But, I've been using a doubletalk for probably 14 years or so. I believe it has been around for longer. They have made substancial improvments, but I don't know what the current state of development is. the beauty of is it that it's usable, and cheap! Rusty ____________________ Skype: rustyperez Yahoo and AIM: reliroo Check out my blog at http://rusty-perez.blogspot.com <http://rusty-perez.blogspot.com/> _____ From: bookport-bounce@xxxxxxxxxxxxx [mailto:bookport-bounce@xxxxxxxxxxxxx] On Behalf Of James Nuttall Sent: Friday, September 02, 2005 7:53 AM To: bookport@xxxxxxxxxxxxx Subject: [bookport] Questions about DoubleTalk I'm always interested in the technology that I use and the possiblities for upgrades. The DoubleTalk synathesizer is no different. Apparently the doubletalk synthesizer is produced by RC Systems, Inc. I have several questions and wonder if anybody has some answers. (1) how old is the doubletalk synthesizer which is used in the BookPort? (2) is the company involved in development and upgrades to its current synthesizer? Thanks Jim Nuttall--Michigan