Telit Wireless Solutions Easy GPRS Contents

Easy GPRS User Guide

80000ST10028 Rev. 0 - 02/01/07

Contents

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

1.1 Introduction............................................................................................................................................4

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

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

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

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

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

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

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

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

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

2.1 Overview................................................................................................................................................16

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

2.3 Examples....................................................................................................................... ........................26

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

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

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

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

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

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