Iridium 9500 User Manual

Page of 226
Getting Started
27
What Is a SIM Card?
Your SIM card (Subscriber Identity Module) is a 
smart card that contains your phone number, 
service details, and memory for storing Phone Book 
entries and messages. If you don’t have your 
phone, you can insert your SIM card into a friend’s 
phone and make use of your personal wireless 
service.
Keep in Mind: 
Your phone has limited functionality 
without the SIM card. 
GSM SIM Card Capability
If you already have a GSM SIM card and your 
service provider has a roaming agreement with the 
Iridium satellite system, you can use it in your 
satellite telephone. You need an optional Cellular 
Cassette to access your local cellular/PCS service. 
Keep in Mind: 
If you are using a GSM SIM card, you 
may not have access to certain features that are 
specific to the Iridium satellite system, and vice 
versa.
SIM Card Protection
Keep your SIM card in your wallet or purse when 
you’re not using it. This helps keep your personal 
information secure and gives you access to your 
service even if you don’t have your phone. If you 
forget your phone, insert your SIM card into a 
friend’s phone to access your personal service.
Caution: 
Avoid bending, scratching, or exposing 
your card to static electricity, water, or dirt.