[Users] SMS using USB Modem

[JThompson at westell.com]

Hi
I am trying to use the SMS module with a Motorola V600 phone attached via
USB.  Linux sees the phone as ttyACM0.  In the config file i set the device
as "d=/dev/ttyACM0".  When the module loads it says "NOTICE:initmodem:
Waiting 2 sec. before retrying"  then it says the modem is not connected to
the network.  Is it possible to use a USB modem with the SMS module?  What
do I need to do?  Thank you.
~Jacob