Samsung N640 User Manual download pdf (Page 46)

46 Using the Modem

In command mode, you can call by using AT commands and communicate with

others by connecting to other modems. You can call this status Data mode or On-

line mode. In data mode, You can't use any AT commands except the +++

command, which has +++ at the head.

If you stop communication and disconnect the phone, the Fax modem will run in

command mode again.

Using Command Mode during Communications

Sometimes, you have to use AT command while you're communicating with

others via modem. In this case, you can use +++ command for AT command

without hanging up your telephone. Pressing '+' three times makes fax mode

change to command mode. Of course, the telephone is not disconnected. (Don't

enter Enter key after input +++)

Connection may be lost depending on the server.

If you want return to Data mode from command mode, you only have to input ATO

and press the Enter key to start the communications again.

The mode can not be transfored from the command mode to

data mode depending on the server.

Using AT commands

AT commands can be used in the following way. There's no difference between

capital letters and small letters, and all commands should include 'AT' as a prefix

except ones, which includes 'A/' instead.

Also, Carriage Return saved in the S3 register should be entered in order to sign

the end of the command.

AT command Press Enter key

Example: ATDT 123-4567 Press Enter and the model dials to 123-4567

Display the result value

After entering AT commands, the result value is displayed on the screen.

1 2 ... 41 42 43 44 45 46 47 48 49 50 51 ... 119 120

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Samsung N640 User Manual Page 46