
Table of Contents
Multi-Tech Systems, Inc. AT Commands for Wireless Modems with IP Connectivity (S000333B) 4
Display Parameters .........................................................................................................................................................23
#VMAIL1 / #VMAIL2 / #VMAIL3 Display Email Parameters.......................................................................................23
#VPOP3 Display POP3 Parameters ..........................................................................................................................23
#VSMTP Display SMTP Parameters .........................................................................................................................23
#VDNS Display DNS Parameters ..............................................................................................................................24
Chapter 4 – FTP Services .................................................................................................................................................25
Parameter Definitions......................................................................................................................................................25
#FTPPORT Enter FTP Server Port............................................................................................................................25
#FTPTYPE Specify Data Type...................................................................................................................................25
#FTPSERV Specify FTP Server Address ..................................................................................................................25
#FTPUN Set FTP User Name....................................................................................................................................25
#FTPPW Set FTP Password......................................................................................................................................25
#FTPGETFILENAME Set FTP Download File Name.................................................................................................26
#FTPGETPATH Set FTP Path...................................................................................................................................26
#FTPPUTFILENAME Set FTP Upload File Name .....................................................................................................26
#FTPPUTPATH ...........................................................................................................................................................26
#FTPGET Get Data from Server................................................................................................................................27
#FTPPUT Put Data to Server.....................................................................................................................................28
#VFTP Display FTP Parameters................................................................................................................................28
Chapter 5 - TCP Socket Services.....................................................................................................................................29
Parameter Definitions......................................................................................................................................................29
#DLEMODE Set DLE Mode .......................................................................................................................................29
#TCPPORT Set TCP Port for Remote Peer...............................................................................................................29
#TCPSERV Set Address of Remote TCP Server ......................................................................................................29
#LTCPSTART Open Listening Mode .........................................................................................................................30
#LTCPSTOP Close Listening Mode...........................................................................................................................30
#OTCP Open TCP Connection ..................................................................................................................................31
#VTCP Display TCP Parameters ...............................................................................................................................31
Chapter 6 – UDP Socket Services....................................................................................................................................32
Parameters Definitions ....................................................................................................................................................32
#UDPPORT UDP Port Number..................................................................................................................................32
#UDPSERV UDP Server............................................................................................................................................32
#UDPTXDELAY UDP Data Delay..............................................................................................................................32
#LUDPSTART Open an UDP Session in Listen Mode ..............................................................................................33
#LUDPSTOP Close a Listening Mode UDP Session .................................................................................................33
#OUDP Open an Active UDP Session.......................................................................................................................34
#VUDP Display UDP Parameters ..............................................................................................................................34
Chapter 7 – PING Services ...............................................................................................................................................35
Parameters Definitions ....................................................................................................................................................35
#PINGDELAY PING Delay Time................................................................................................................................35
#PINGNUM Number of PING Requests ....................................................................................................................35
#PINGREMOTE IP Address of PING Request ..........................................................................................................35
#PING Start PING Request........................................................................................................................................35
#VPING Display PING Parameters............................................................................................................................36
Chapter 8 – Miscellaneous Commands...........................................................................................................................37
#VVERSION Display Software Version .....................................................................................................................37
#VSTATE Display Current Status ..............................................................................................................................37
#VALL Display All Parameters...................................................................................................................................37
#DELFLASH Erase Flash Memory Parameter Values...............................................................................................39
Chapter 9 - Response Messages and Error Codes ........................................................................................................40
Response Messages ...................................................................................................................................................40
Error Codes..................................................................................................................................................................40
Appendix A – Getting Started Examples.........................................................................................................................42
Get Software Version...................................................................................................................................................42
AT# Interface ...............................................................................................................................................................42
GSM Network Registration...........................................................................................................................................42
GSPRS Network Registration ......................................................................................................................................42
Connect to the Internet ................................................................................................................................................43
Sending/Retrieving Email.............................................................................................................................................44
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