Introduction - Sony Ericsson GPRS and TCP-IP with the SEM GSM modules Application Note

Using GPRS and TCP/IP stack with SEM GSM modules
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Introduction

The GSM/GPRS system allows direct access into the internet enabling
M2M applications to interface to web servers rather than going through the
PSTN which gives faster and cheaper communications with greater
flexibility.
This document is intended to explain how the overall system works and
how the SEM GSM modems with their embedded TCP/IP stack enable
transparent communications.
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