If you are having trouble sending SMS messages using the Iridium GO! App please take the below steps and check the default service center number within the Iridium GO! App

When sending messages, always use the international dialing format. For example, for a US number, enter +1 followed by the phone number. If you're using your contact list, check that the number includes the country code before sending.

If your Iridium GO! SMS messages are being received OK by the land-based cellular phone, but their reply is not being received back to the boat's Iridium GO!, then this tells us your SMS messaging is set up correctly however there could be an issue with the land-based cell phone.

The issue is that sending SMS messages from land-based cell phones to the Iridium GO! is very expensive - generally more than US$1 per message, so some Telecom companies do not allow this. The person on land that is trying to send you an SMS should contact their Telecom Company and ask if SMS messaging to Iridium satellite phones is allowed on their cellphone plan. Often it is blocked.

The best way for friends and family to SMS you is via the SMS messaging website. Anyone can send free SMS messages to your Iridium GO! using this website https://www.predictwind.com/iridium-free-sms/ on PC, Mac, iPhone, iPad or Android with a web browser like Google Chrome, Safari or Firefox.

They will need your Iridium phone number 8816 XXXX XXXX and can send messages up to 160 characters long.

There is no limit to the number of messages that can be sent.