Follow the steps below if you are unable to access voicemail from the Iridium 9555 or Iridium Extreme.

Step 1: Reprogram the voicemail retrieval number

1. Press Menu
2. Scroll to Voicemail and press Select
3. Scroll to Voicemail Settings and press Select
4. Scroll to Voicemail Number and press OK
5. Clear the entered number
6. Type in 00881662990000 and press Save
7. Press Back until home screen is reached

Step 2: Check voicemail

1. Press Menu
2. Select Voicemail
3. Select Call Voicemail
4. The phone will call voicemail
5. The voicemail system will prompt you to enter the satellite phone number; type in the complete number starting with 8816
6. The voicemail greeting will begin playing
7. Interrupt the voicemail greeting with * 
8. You will then be prompted to enter the PIN code. The default PIN code is the last 7 digits of the satellite number
9. You will now have access to the voicemail inbox. Follow the system prompts as you listen to your voicemail messages