Level 1-2 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 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 network

Identification

Each Motorola GSM phone is labeled with a variety of identifying numbers. The following information describes the current identifying labels.

Mechanical Serial Number (MSN)

The 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 phone on Motorola's Service Center Database.

The MSN is divided into 4 sections as shown in Figure 46.

 

MSN 10 Digits

 

3 Digits

1 Digit

2 Digits

4 Digits

APC

DC

DC

SNR

Account Product Code

Distribution Center

Date Code: Year and

Unit's individual serial

i.e. StarTAC™ Phone130

i.e. Easter Inch

Month of Shipment

number

Figure 46. MSN Divisions

International Mobile Station Equipment Identity (IMEI)

The International Mobile Station Equipment Identity (IMEI number is an individual number unique to the Transceiver and is stored within the unit's memory. The IMEI uniquely identifies an individual mobile station and thereby provides a means for controlling access to GSM networks based on mobile station types or individual units. The full IMEI structure is listed in the table below.

Aug.15, 2006

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Motorola W375 service manual Subscriber Identity Module SIM and Identification Label