Telit Wireless Solutions Easy GPRS ユーザーズマニュアル

Easy GPRS User Guide

80000ST10028 Rev. 0 - 02/01/07

Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved

page 3 of 35

Contents

GPRS Operations ............................................................................................................................ 4

1.1

Introduction ............................................................................................................................................4

CSD application example ....................................................................................................................................6

GPRS application example ..................................................................................................................................7

1.2

Preliminary GPRS context parameters setting....................................................................................8

Context parameter setting ....................................................................................................................................8

Minimum Quality of the Service Requested........................................................................................................9

Requested Quality of the Service.......................................................................................................................11

1.3

GPRS context activation and data state entering ..............................................................................13

1.4

GPRS data state exit.............................................................................................................................15

Enhanced Easy GPRS Extension ................................................................................................. 16

2.1

Overview................................................................................................................................................16

Easy GPRS Outgoing connection ......................................................................................................................17

Configuring the GPRS access ...................................................................................................................17

Configuring the embedded TCP/IP stack ..................................................................................................17

Saving settings for the Internet peer to be contacted.................................................................................17

Request the GPRS context to be activated ................................................................................................18

Open the connection with the internet host ...............................................................................................18

Close the Socket without deactivating the context....................................................................................18

Easy GPRS Incoming Connection .....................................................................................................................19

Defining the Internet Peer that can contact this device (firewall settings) ................................................19

Request the socket connection to be opened in listen ...............................................................................20

Receiving connection requests ..................................................................................................................20

FTP Client..........................................................................................................................................................21

Email Client .......................................................................................................................................................21

Known limitations..............................................................................................................................................21

2.2

FTP OPERATIONS .............................................................................................................................22

Opening and Closing an FTP Connection..........................................................................................................22

Setting the FTP Transfer Type...........................................................................................................................23

FTP File transfer to the server ...........................................................................................................................23

FTP File download from the server ...................................................................................................................24

2.3

Examples ...............................................................................................................................................26

Easy GPRS - HTTP client application ...............................................................................................................26

Easy GPRS - EMAIL sending application.........................................................................................................28

Easy GPRS -EMAIL receiving application .......................................................................................................30

Remote connection between two modules.........................................................................................................32

List of acronyms............................................................................................................................. 34

Document Change Log .................................................................................................................. 35