Problems with Iridium 9555 Data Services
PROBLEM:  In principle the new Iridium 9555’s USB data kit should have been more straightforward to use than the clumsier  RS-232 serial port data kit used by the older 9505A.  Most of our customers had no problems using the 9555 for data.  However, some customers had serious problems that used up a lot of technical support time.

SOLUTION:  In June 2009, we stopped renting the Iridium 9555 for customers wanting data services.  We are waiting for Iridium to write better USB drivers.  We can support 9505As needing data over a computer’s RS-232 serial port, PCMCIA port, or (usually) the USB (port).