6881039B25 January 08, 2002 33
Level III Service Manual Subscriber Identity Module (SIM) and Identification
Label
Subscriber Identity Module (SIM) and Identification Label
SIM
A SIM is required to access the existing local GSM network, or remote networks
when traveling (if a roaming agreement has been made with the provider).
The SIM card contains:
• All the data necessary to access GSM services
• The ability to store user information such as phone numbers
• All information required by the network provider to provide access to the net-
work
Identification
Each Motorola GSM device is labeled with a variety of identifying numbers. The
following information describes the current identifying labels.
Mechanical Serial Number (MSN)
The Mechanical Serial Number (MSN) is an individual unit identity number and
remains with the unit throughout its life.
The MSN can be used to log and track a unit on Motorola's Service Center Database.
The MSN is divided into 4 sections as shown in Figure 18.
000807a
Figure 18. MSN label breakdown
MSN 10 Digits
3 Digits 1 Digit 2 Digits 4 Digits
APC DC DC SNR
Account Product Code
i.e. StarTAC Phone130
Distribution Center
i.e. Easter Inch
Date Code: Year and
Month of Shipment
Unit's individual serial
number
TM
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