SIM800 datasheet(44/380 Pages) SIMCOM

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Smart Machine Smart Decision

SIM800 Series_AT Command Manual_V1.09

2015-08-03

The result codes, their numeric equivalents and brief descriptions of the use

of each are listed in the following table.

Parameter Saving

Mode

AT&W_SAVE

Max

Response

Time

Reference

V.25ter

Note

ATV1

ATV0

Description

Acknowledges execution of a Command

CONNECT

A connection has been established; the DCE is moving from

Command state to online data state

RING

The DCE has detected an incoming call signal from

network

NO CARRIER

The connection has been terminated or the attempt to

establish a connection failed

ERROR

Command not recognized, Command line maximum length

exceeded, parameter value invalid, or other problem with

processing the Command line

NO DIALTONE 6

No dial tone detected

BUSY

Engaged (busy) signal detected

NO ANSWER

"@" (Wait for Quiet Answer) dial modifier was used, but

remote ringing followed by five seconds of silence was not

detected before expiration of the connection timer (S7)

PROCEEDING

An AT command is being processed

CONNECT

<text>

Manufacturer-

specific

Same as CONNECT, but includes manufacturer-specific

text that may specify DTE speed, line speed, error control,

data compression, or other status

2.2.26 ATX

Set CONNECT Result Code Format and Monitor Call Progress

ATX

Set CONNECT Result Code Format and Monitor Call Progress

Response

This parameter setting determines whether or not the TA detected the

presence of dial tone and busy signal and whether or not TA transmits

particular result codes.

ERROR

Execution

Command

ATX<value>

Parameters

<value>

0 CONNECT result code only returned, dial tone and busy

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