AT Commands

For example, you might enter a dollar amount for a banking transaction by entering

AT D 1400 ;

This sends the sequence 1400 and then returns to the command mode for further entries, according to the requirements of the banking service.

Dialing a Stored Telephone Number Sn

To dial one of the previously stored numbers, enter Sn where n represents a stored telephone number location between 1 and 9.

AT D S9

In this example, the number stored in location 9 is dialed.

Note

DS and DS1 are the same location.

Autodial Number Location *AUn

The *AUn command selects stored number n (n=1 to 9) to be autodialed. This is the autodial number, which is used for any autodial application.

Voice Calls

To make a voice call, dial the number with the telephone.To use the dial command for the call, enter the following dialing sequence:

AT D (number);

The ; modifier recalls the command mode and prevents the modem from training. The remote site must be answered by the telephone for the voice call to be successful.

Switching from Voice to Data

After dialing, place the modems at both ends in data mode by pressing the TALK/DATA button. The *DA1 command can also be used to change from talk mode to data mode.

Answering A Call

There are three ways to answer a call for a data connection:

Manually

AT Command

Autoanswer

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Modem 3600

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Black Box 3600 MODEM manual Dialing a Stored Telephone Number Sn, Autodial Number Location *AUn, Voice Calls