WIRELESS SOLUTIONS FOR EVERYONE TECHNICAL SEMINAR SEPTEMBER 2003 GPRS & IP STACK Philippe de La Bourdonnaye

2 MtoM IP Communication over GPRS  GPRS sessions opening at both ends  Necessary dynamic synchronisation ? or Static ?  Private or Public ? GPRS Network Packet Networks GPRS Network

3 IP Connectivity for WISMO & Open AT  WISMO IP Connectivity Standard WISMO module IP connectivity implemented within the Open AT

4 GPRS & IP with AT# Commands GPRS Network AT/V.24 Low Internet Layers GPRS IP TCP/UDP GGSN Application AT/V.24 AT# Commands

5 GPRS & IP with IP Stack Library GPRS Network Application AT/V.24 Low Internet Layers GPRS IP TCP/UDP GGSN Open AT

6  Integration of IP stack as Open AT applic. Download into Wavecom module/modems  Autonomous Software Stack initialisation and parameters restoration from WISMO EEPROM To be integrated into standalone equipement  Both GSM and GPRS Compatibilities IP Stack use on GSM as well GSM Features during GPRS Sessions: Incoming Calls, SMS,… IP Connectivity: Services

7  TCP Sockets and UDP Sockets: transparent asynchronous data transfer between systems defined by an IP address and a port number includes Telnet (TCP/23) for Terminal Emulation  FTP (file transfer protocol TCP/20,21): file transfer between systems  POP3 (Post Office Protocol V3 TCP/110): allows clients to read and remove from a mailbox  SMTP (Simple Mail Transfer Protocol TCP/25): used to deliver from one system to another  DNS (Domain Name Solving UDP/53) Protocols Supported

8 GSM/GPRS  Example with an Open AT + IP customization: IP Internet PC Alarm Management IP Enhanced Application FTP Server File Storage For Fiscal Purposes FTP transfer

9  Main Firmware Download AT+WOPEN=0 V640c AT+CGMR  GPRS class 10 Feature Activated AT+CGCLASS=“B”  Open AT Feature Activated AT+WOPEN?  IP Stack Download V302_V2  AT+WOPEN=1  IP Feature Activated AT#VVERSION  AT+WIMEI? First Steps & First Checks

10  AT+WIND?  AT+CPIN?  AT+WGPRS=0,0;+CMEE=1;&W;+WMIR  AT+CFUN=1  AT+CPIN?  AT+CREG?  AT+CGREG?  AT#VALL  AT# parameters are automatically stored in Flash PROM No AT&W needed AT#DELFLASH : come back to default values after the next reset Starting with GPRS Attachment

11  AT#VGPRS  AT#APNSERV=“orange.fr”  AT#APNUN=“orange”  AT#APNPW=“orange”  AT#GPRSMODE=1  +WIND: 4  AT#CONNECTIONSTART (AT#CONNECTIONSTOP)  AT#VSTATE  AT#DISPLAYIP  AT#VDNS  AT#DNSSERV1=“ ”  AT#DNSSERV2=“aaa.bbb.ccc.ddd” Starting with GPRS Session

12  AT#VPOP3  AT#VSMTP  AT#POP3HEADERMODE=1  AT#POP3PORT=110  AT#POP3PW="fbewm03"  AT#POP3SERV="pop.tiscali.fr"   AT#DOMAIN="tiscali.fr"   AT#SENDERNAME="fouadtraining03"  AT#SMTPPORT=25  AT#SMTPPW="fbewm03"  AT#SMTPSERV="smtp.tiscali.fr"  Management

13  AT#VMAIL1    AT#SUBJ1="test message“  AT#BODY1 Maximum message length is 120  AT#SENDMAIL1  AT#PUTMAIL No limit for message length.  AT#GETMAIL s are automatically deleted Transmission/Reception Command Mode Incoming call Command Mode Incoming call

14  AT#VFTP  AT#FTPSERV=" "  AT#FTPPORT=21  AT#FTPUN="support-tcpip"  AT#FTPPW="xbo194ar"  AT#FTPTYPE=A  AT#FTPGETFILENAME="ascii1.txt"  AT#FTPGETPATH="./support-tcpip/“  AT#FTPPUTFILENAME="ascii1.txt"  AT#FTPPUTPATH="./support-tcpip/" File Transfer Management

15  AT#FTPPUT  AT#FTPGET File Transmission/Reception Command Mode Incoming call

16  AT#VTCP  AT#DLEMODE=1 (def.)  AT#TCPPORT=23  AT#TCPTXDELAY=100 (def.)  Listener AT#TCPSERV=“ ” AT#LTCPSTART AT#LTCPSTOP (to stop if no socket has been opened by a caller)  Caller AT#TCPSERV=“eee.fff.ggg.hhh” AT#OTCP The text is transmitted to remote site without echo TCP Socket Management Command Mode Incoming call Command Mode Incoming call

17 Visit our Web Sites