SIM800 datasheet(46/380 Pages) SIMCOM

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SIM800 Series_AT Command Manual_V1.09

2015-08-03

ERROR

Parameters

<value>

0 DCD line is always ON

1 DCD line is ON only in the presence of data carrier

Parameter Saving

Mode

AT&W_SAVE

Max

Response

Time

Reference

V.25ter

Note

2.2.29 AT&D

Set DTR Function Mode

AT&D

Set DTR Function Mode

Response

This parameter determines how the TA responds when circuit 108/2 (DTR)

is changed from the ON to the OFF condition during data mode.

ERROR

Execution

Command

AT&D[<value>]

Parameters

<value>

0 TA ignores status on DTR.

1 ON->OFF on DTR: Change to Command mode with

remaining the connected call.

2 ON->OFF on DTR: Disconnect call, change to Command

mode. During state DTR = OFF is auto-answer off.

Parameter Saving

Mode

AT&W_SAVE

Max

Response

Time

Reference

V.25ter

Note

2.2.30 AT&F

Factory Defined Configuration

AT&F

Factory Defined Configuration

Response

TA sets all current parameters to the manufacturer defined profile.

Execution

Command

AT&F[<value>]

Parameters

<value>

0 Set all TA parameters to manufacturer defaults.

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