Fixed a problem where S register 0 is being set to a value of 0 when callback security is enabled and the modem connects at 300bps.

MT5634ZBA-V92, MT5634ZBA-V-V92

This was added in firmware version 1.32b. The latest firmware can be downloaded from our Web site at:

http://www.multitech.com/en_US/SUPPORT/Families/MultiModemZBA/firmware