Follow the steps below on how to send a text message to an Iridium handset.

Solution 1: Sending a text message using a cell phone

1. Using your cell phone, compose a new message.
2. In the recipient field, enter the full Iridium phone number starting with a + or 00.
• I.e. +881623412345 / 00881623412345
3. In the message field, enter your desired message and press SEND.

Solution 2: Sending a text message using Iridium messaging service

1. Navigate to https://messaging.iridium.com/
2. Enter the full Iridium phone number in the field, 8816...
3. Enter your email reply address in the field, Reply Email
4. Enter your desired message in the field, Message.
5. Select the "I'm not a robot" check-box.
6. Press Send Message to send your message to the Iridium handset.