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SIM800 Series_AT Command Manual_V1.09

2015-08-03

2.2.6 ATDL

Redial Last Telephone Number Used

ATDL

Redial Last Telephone Number Used

Execution

Command

ATDL

Response

This Command redials the last voice and data call number used.

Note: This Command may be aborted generally by receiving an ATH

Command or a character during execution. The aborting is not possible

during some states of connection establishment such as handshaking.

If error is related to ME functionality

+CME ERROR: <err>

If no dial tone and (parameter setting ATX2 or ATX4)

NO DIALTONE

If busy and (parameter setting ATX3 or ATX4)

BUSY

If a connection cannot be established

NO CARRIER

If the remote station does not answer

NO ANSWER

If connection successful and non-voice call.

CONNECT<text> TA switches to data mode.

Note: <text> output only if ATX<value> parameter setting with the

<value> >0

When TA returns to Command mode after call release

If successfully connected and voice call

Parameter Saving

Mode

NO_SAVE

Max

Response

Time

Reference

V.25ter

Note

See ATX Command for setting result code and call monitoring parameters.

Return the numbers and symbols which ATD supports if there is no last

dialing context.

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