Twitter has recently expanded their SMS service to include satellite networks, including satellite phones operating on the Iridium
Twitter has been available via satellite phones since early 2012, but only via a separate Twitter Mail program, with the Twitter SMS service now available for satellite networks tweeting from remote locations is easier than ever before. Twitter supports Iridium
as ‘mobile carriers’ allowing users to send tweets directly using SMS.
Twitter SMS via satellite phones is a great way to stay connected, even in areas without cellular or WiFi coverage.