MultiModemDID User Guide

Chapter 4 - AT Commands, S-Registers, Result Codes

 

 

Command: %A

Adaptive Answer Result Code Enable

Values:

n = 0 or 1

Default:

0

Description:

The %A command controls whether the DATA and FAX result

 

codes will be sent by the modem. The modem must be in fax

 

mode for this command to work. Also, the modem must be set

 

to +FAA=1, which enables the modem to distinguish between a

 

fax and a data call. When these commands are enabled, the

 

modem sends DATA to the computer when it detects data tones,

 

and FAX when it detects fax tones. These strings are used by

 

some servers to select the appropriate communication program.

%A0

Disables adaptive answer result codes.

%A1

Enables adaptive answer result codes.

Note: For descriptions of the +FAA= and other fax commands, see the Multi-Tech Fax Class 2.1 Developer’s Guide.

Command:

%B

View Numbers in Blacklist

Values:

 

n/a

Description:

 

If blacklisting is in effect, AT%B displays the numbers for which

 

 

the last call attempted in the previous two hours failed. In

 

 

countries that do not require blacklisting, the ERROR result

 

 

code appears.

Command:

%Cn

Data Compression Control

Values:

 

n = 0 or 1

Default:

 

1

Description:

%C0

Disable sV.42bis/MNP 5 data compression.

 

%C1

Enables V.42bis/MNP 5 data compression.

Command:

%DCn

AT Command Control

Values:

 

n = 0 or 1

Default:

 

0

Description: %DC0 The modem responds to AT commands. %DC1 The modem ignores AT commands.

Note: The modem will respond to AT%DC for 10 seconds after it is turned on.

Command:

%En

Fallback and Fall Forward Control

Values:

 

n = 0, 1, or 2

Default:

 

2

Description:

%E0

Disables fallback and fall-forward.

 

%E1

Enables fallback, disables fall-forward.

 

%E2

Enables fallback and fall-forward.

Command:

%Hn

Direct Connect Enable

Values:

 

n = 0, 1

Default:

 

0

Description:

%H0

Sets callback security to normal operation.

 

%H1

All callback security calls will be direct connect regardless of

 

 

whether the password or phone number has the - character.

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Multi-Tech Systems MT5634ZBA-DID Adaptive Answer Result Code Enable, View Numbers in Blacklist, Data Compression Control