You are going to have to try a bunch of different settings then. Those parameters in /etc/bluetooth/uart are what is passed to hciattach. You can see how hciattach is used by just typing 'hciattach' in the console. 'hciattach -l' also shows the list of know presets for type, speed and flow.
Marcel (Mr Bluez) Holtmann thought rev H would use the same parametes as the Zoom card. There is a preset in the latest utilities for the Zoom card, but this is the same as
/dev/ttyS3 bcsp 115200
which is the same as
/dev/ttyS3 bcsp
Basically, no one so far has got the Rev H card working under Linux as far as I can see.