| | I have the 824-894 MHz amplifier
I installed the antenna/repeater system back when I was using a Samsung I700 on Verizon's system (800 MHz). I never even thought about my Cingular 7290 being on a different frequency! That being said, my berry works throughout the house with no problems.
roccitman: I got my system from Alternative Wireless as well, but it has been a few years, so the costs have gone up accordingly. The 1900 MHz unit that you are referring to is a direct connect type and requires that you "hard wire" your berry to it. It looks like it's your only option though if you need a 1900 MHz unit. Call the folks at Alternative just to be sure. They were very helpful when I called.
a-ser: data in/out is normal as far as I can tell.
Two Mike Romeo