Before a subscriber can send an SMS message from the Iridium system, the Iridium SMS service center number must be stored on the SIM card.

To store the Iridium Service Center Number:

Service Center on Iridium 9500/9505/9505a/9522 Handsets

  1. Press the Envelope Key on the handset.
  2. Use the Scroll Key to select the ‘Message Settings’ option. Press OK.
  3. Use the Scroll Key to select the ‘Service Centre’ option. Press OK.
  4. Enter +881662900005. Press OK.
  5. The phone will momentarily display “Completed”.

Service Center on Iridium 9555 Handsets

  1. Press the Menu Key on the handset.
  2. Use the Scroll Key to select the "Messages" option. Press Select.
  3. Use the Scroll Key to select the ‘Settings’ option. Press Select.
  4. Use the Scroll Key to select the ‘Service Centre’ option. Press Select.
  5. Enter +881662900005. Press OK.