Iridium 9520 Manual Do Utilizador

This chapter tells you what to do if you experience one of the following 
problems: 

You can’t make 
calls. 

Check that the antenna is properly mounted. Do you 
have a clear view of the sky?

Did you enter the number in international format? All 
calls made from the Iridium satellite system must be 
in international format.

Check the signal strength meter. If the signal is weak, 
move the vehicle to a more open area.

Check the Network Selection settings.

Check your Operator coverage map.

Is Restricted displayed? Check the Call Barring setting.

Has a new SIM card been inserted? Check that no 
new restrictions have been imposed.

You can’t receive 
calls. 

Check to see that your phone is powered on.

Check the antenna. Is it properly mounted? Do you 
have a clear view of the sky?

Check the signal strength. If the signal is weak, move 
the vehicle to a more open area.

Check the Call Forwarding and Call Barring settings.

Check the Ringer setting. If it is off, there is no audible 
ringer. 

You can’t make 
international 
calls. 

Have you included the relevant codes? Press and hold 
the 

0

 key to display the international dialing prefix (

+

) 

and then enter the appropriate country code followed by 
the phone number. 

Your phone will 
not unlock. 

Have you inserted a new SIM card? Enter the new PIN 
code.

Do you have a replacement phone? Enter the default 
phone unlock code —1234.

Have you forgotten the unlock code?

 Press 

M

 to 

change the unlock code (you need your security code).

Enter the PIN unblocking key (PUK1) or contact your 
service provider. See “Unblock the PIN Code” on 
page 106 for additional information.