THanks
Almost all of the remotes I've taken apart, and it has been a lot, just have tabs holding them together, none have been welded. You just have to know where to pry to pop them open.
The base came apart like a puzzle quite nicely. I was hoping it would be the same thing with the handset.
My next stop, if there are no more responces, is to try prying open and cutting (carefully) with a rasor blade. At least, then I can glue it back together.