Chapter 5 – Call Control Commands

Redial Last Telephone Number DL

Description: This command is used by the application to redial the last number used in an ATD commanded voice call. The ATDL command causes the last voice call number to be redialed. The phonebook is not referenced for the redial. Data call numbers are not supported by this command; only voice call numbers.

Syntax:

Command syntax: ATDL

 

 

Command

Possible Responses

 

ATDL

OK

 

Note: Redial last number

+WORG: 8585551212

 

 

Note: Last call was a voice call. Command valid

Automatic Dialing with DTR %Dn

Description: This command enables and disables the automatic sending of the short message (SMS) stored in the first location. The number is dialed and then short message is sent when DTR OFF switches ON.

Values:

<n>

(0-2) Enable or disable automatic message transmission or number dialing.

 

 

Informs the product that the number is a voice rather than a fax or data number.

 

AT%D0

Disables automatic DTR number dialing / message transmission.

 

AT%D1

Currently not implemented.

 

AT%D2

Activates automatic DTR message transmission if DTR switches from OFF to

 

 

ON.

Syntax:

Command syntax: AT%D<n>

 

 

Command

Possible Responses

 

 

 

 

AT%D2

OK

 

Note: Activates DTR short message sending

Note: Command has been executed

Automatic Answer S0

Description: This S0 (zero) register parameter determines and controls the product automatic answering mode.

Values:

<value>

(0-255)

 

0:

No automatic answer.

 

1 – 255:

Answers after the specified number of rings.

Syntax:

Command syntax: ATS0=<value>

 

 

Command

Possible Responses

 

ATS0=2

OK

 

Note: Automatic answer after 2 rings

 

 

ATS0?

002

 

 

OK

 

Note: Current value

Note: always 3 characters padded with zeros

 

ATS0=0

OK

 

Note: No automatic answer

Note: Command valid

Other S-parameter registers are implemented. See Chapter 17, Basic S-Registers.

Multi-Tech Systems, Inc. CDMA Wireless AT Commands - PN S000294C

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Multi-Tech Systems CDMA Wireless Modem manual Redial Last Telephone Number DL, Automatic Dialing with DTR %Dn