What are the functional differences between the the MT2834ZDX and MT2834ZDXb modems?

ADDITIONAL INFORMATION:

We have been using the MT2834ZDX modems for our customer's POS applications with success for many years. It appears that these are no longer available and the next closest replacement would be the MT2834ZDXb. We program the MT2834ZDX modems with the following strings for our applications:
AT&F
AT&E1&E5&E6$BA1$D0&D0&W0
AT$MB9600$SB9600
ATS0=1
AT&W0
Will this same set of commands give us the same results on the MT2834ZDXb modem? Win2000 has a built in driver for the MT2834ZDX modem, but not one for the MT2834ZDXb. Will this work for us?


RESPONSE:

The difference between the ZDX and ZDXb is that the MT2834ZDX is capable of a 28.8k connection and the MT2834ZDXb is capable of a 33.6k connection. They use the same drivers and AT commands so you should not have any problem.