Authorised users can send SMS Messages from anywhere they see the SMS button: , including the following places:

The Utility | Send SMS Message menu:

The Supplier or Customer window:

The Contact Details panel on the Contact window:

The Location panel on the Contact window, for a Street address or Latitude/Longitude (Map link):

The Others or Admin tabs of the Contract window:

The Source, Destination or Carrier tabs of the Load window:

To the Truck or the default SMS contact for the Carrier from the Truck window:

The Truck Book window: