20 Using Your Phone
Installing the SIM Card
Your SIM card (Subscriber Identity Module) 
contains your phone’s number, service details, and 
memory for storing Phone Book entries and 
messages. This means you can use your SIM card 
with any phone for the GSM system or any Motorola 
product for the Iridium satellite system, and all calls 
go on your account. 
Caution: 
Avoid bending, scratching, or exposing 
your card to static electricity or water.
Make sure your phone is powered off before 
inserting or removing the SIM card. If you don’t, you 
may damage the memory on your SIM card. 
Insert the SIM Card
Tip: 
Make 
sure the side 
with the gold 
plate is facing 
up.
1.
Turn your phone off by pressing and 
holding the 
S key.
2.
Insert the SIM card into the slot in the hang-
up cup. 
Remove the SIM Card
1.
Turn your phone off by pressing and 
holding the 
S key.
2.
Pull the SIM card out of the slot in the hang-
up cup.
IRIDIUM
Mobile.book  Page 20  Wednesday, September 9, 1998  3:05 PM