SIM800 datasheet(22/380 Pages) SIMCOM

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SIM800 Series_AT Command Manual_V1.09

2015-08-03

1 Introduction

1.1 Scope of the document

This document presents the AT Command Set for SIMCom SIM800 Series, including SIM800V,

SIM840V, SIM800W, SIM840W, SIM800W16, SIM840W16, SIM800L, SIM800H, SIM800,

SIM800M64, SIM800G, SIM808, SIM800C, SIM800A, SIM800F and SIM800C-DS.

1.2 Related documents

You can visit the SIMCom Website using the following link:

http://www.sim.com

1.3 Conventions and abbreviations

In this document, the GSM engines are referred to as following term:

ME (Mobile Equipment);

MS (Mobile Station);

TA (Terminal Adapter);

DCE (Data Communication Equipment) or facsimile DCE (FAX modem, FAX board);

In application, controlling device controls the GSM engine by sending AT Command via its

serial interface. The controlling device at the other end of the serial line is referred to as

following term:

TE (Terminal Equipment);

DTE (Data Terminal Equipment) or plainly "the application" which is running on an embedded

system;

1.4 AT Command syntax

The "AT" or "at" or “aT” or “At”prefix must be set at the beginning of each Command line. To

terminate a Command line enter <CR>.

Commands are usually followed by a response that includes.

"<CR><LF><response><CR><LF>"

Throughout this document, only the responses are presented, <CR><LF> are omitted

intentionally.

The AT Command set implemented by SIM800 Series is a combination of 3GPP TS 27.005,

3GPP TS 27.007 and ITU-T recommendation V.25ter and the AT commands developed by

SIMCom.

Note: A HEX string such as "00 49 49 49 49 FF FF FF FF" will be sent out through serial

port at the baud rate of 115200 immediately after SIM800 Series is powered on. The string

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