Network

With its constellation of satellites, Iridium's network connects people and devices in the world's most remote places - and close to home.

Inmarsat is one of the longest standing satellite networks and offers a very reliable service covering the globe, except North & South Poles.

Send a free SMS to an Iridium user with a "8816" prefixed number. No charge to the receiver. Not available with a Telstra "01471" prefixed service.

Send a free SMS to an Inmarsat user with a "87077" prefixed number. No charge to the receiver of the SMS. Send as many as you like!