The new firmware for Inmarsat’s IsatPhone II satellite phone has been released and is available to download from the Support section of the Inmarsat website www.inmarsat.com.
Firmware version 01.04.01 supersedes the original version 01.00.00 that was released in March 2014 when IsatPhone II was launched. This is a recommended upgrade with a number of fixes and enhancements, including introduction of a new air interface encryption scheme to improve the security of communications between the phone and the GSPS ground network.