Follow the steps below if you are unable to place a call using the Iridium 9555 or Iridium Extreme.

Step 1: Register to the network

1. Take the phone outside in the most open area possible
2. Extend and rotate the antenna so it points to the sky when against your ear
3. Wait for the phone to register, the word Registered will appear on the display

Step 2: Place a call

1. Press and hold the 0 key until the + appears
2. Dial the country code, area code and phone number 
• Example: + (country code)(area code/city code)(phone number)
• Example: + 1 416 253 6008