DECT-modules and ready to use DECT-modems of Höft & Wessel are easy to integrate. Allthough being highend products, they will be offered for very reasonable prices. For worldwide use 2.4 GHz pin and software compatible products are available.
White paper CLDPS (.pdf)
Data Sheet HW86010 (.pdf)
Data Sheet HW86020 (.pdf)
Data Sheet HW8615 (.pdf)