Iridium 9555 - How To Send a Text (SMS) Message

This guide explains how to create, send, and read SMS text messages using the Iridium 9555 satellite phone. All messaging features are accessed through the Messages menu.

Before You Begin

• Ensure you are outdoors with a clear view of the sky and minimal obstructions (e.g., trees, buildings, power lines).
• Extend the antenna and wait until the phone shows "Registered" on the screen, confirming a network connection.

Important:

• Each text message is limited to 160 characters, including spaces and punctuation.
• Multimedia messages (photos, videos, emojis) are not supported.
• Always wait for confirmation that the message was sent successfully. 

Sending a  Text Message

1. Press the Menu key.
2. Scroll to Messages and press the Select key.
3. Select Create Message, then press Select.
4. Use the keypad to type your message.
5. Once complete, press Options, then select Send.
6. Select New Recipient, then press Add.
7. Choose one of the following:
   1. Enter Number: Type the recipient’s phone number in international format
      • Format: + [country code] [area code] [phone number]
      • Example: +1 416 253 6008
   2. Or choose an existing contact from your phonebook
8. Press OK, then press Send to transmit your message.

Read a Message

1. From the Messages menu, select Inbox.
2. Use the navigation key to select the message you wish to read, and select it using the left soft key.
3. While reading the message, you may press the left soft key to view the Options. The options menu will allow you to:
   • Reply
   • Forward
   • Delete
   • Call Sender