I will liberate my switch one way or the other. With your help Panasonic or without it. Your protocol is so transparent with an RS-232 protocol analyzer....

You can spare yourself the effort (although it's an interesting exercise ..) The job has already been done - in Russia, with love. Your peace dividend at work: Windows based piece of software written for the KX-TD 816, 1232 and 308 (incl. 'Dash 3' model). There is also another program that works for the KX-T123210. The best part: Oleg is eminently accessible. I had a problem when I migrated to NT 4.0 (which the software didn't expressly support) with a Rocketport multi serial adapter (which the software had trouble with). I reported the problem to Oleg, somewhere in Russia, and 4 days later he emailed me a new revision of the software which would work with COM58: if I would be so inclined. Great service, great product, great guy.

I have used the Russian software for about a month now and I love it. I had on my lap top 3 different versions of the Panasonic software. With the windows software I just use one package for all my systems. It's also easier to use. I have a young tech. and he can set up the system much quicker with fewer questions. Oleg is pretty easy to work with.

With Oleg's Windows s/w, almost anyone can program a Panasonic system without asking for help.