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Introduction to GSM

Introduction to GSM Book
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Mobile Equipment SIM Lock Mobile Equipment SIM Lock
A mobile phone feature that ensures a mobile phone will only work with one or a group of subscriber identity module (SIM) cards. The mobile phone is programmed with information that must match the information on the SIM card to enable operation. This information may include one or more of the following; IMSI, Group identifier (Service Provider identity) or PLMN identity (MCC+MNC). If a SIM card is inserted that does not match the stored information, the phone will be inoperative.
Physical Channels, Logical Channels, Network Functions, and Operation GSM Books
Introduction to GSM Book
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Introduction to GSM
This book explains the basic components, technologies used, and operation of GSM systems. This book starts with the system components and basic services that the GSM system can provide. You will learn that the key types of GSM devices include single mode and dual mode mobile telephones, wireless PCMCIA cards, embedded radio modules, and external radio modems. You will then discover the different types of available services such as multiple types of voice services, data services, group call, and messaging services.

$19.99 Printed, $16.99 eBook
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