The DT-240 MSAT-G2 handset is no longer manufactured Obsolete Part 

New, improved replacement handsey part number is:  IPR-750

The new IPR750 handset replaces old G2 model handset part numbers: DT-200, DT-201, DT-220, DT-230, DT-240, DT240A, DT240+, DT-250, DT-260 & DT-265 and the Network Innovations H2 handset.

Ligado new G2 handset bulletin 

Replacement handset, click here: