APPENDIX A. AT COMMANDS

A-D DTMF digits A ,B,C and D. These digits may be prohibited in some countries

*The "star" digit (tone dialling only)

#The "gate" digit (tone dialling only)

JPerform MNP 10 link negotiation at the highest supported speed for this call (Optional)

KEnable power level adjustment during MNP 10 link negotiation for this call (Optional)

LDials the last dial string that was dialled

P

Use pulse dialling

T

Use DTMF dialling

R

Reverse mode. Allow the modem to call an originate-only

 

modem by forcing the call into "answer mode". Must be

 

entered as the last character of the command string (optional).

!Cause the modem to go on-hook for a time defined by the value in S29 and then off-hook.

@Cause the modem to listen for 5 seconds of silence

WWait up to the period of time specified in register S7 for dial tone before dialling

 

,

Pause for the value specified by register S8 during dial

 

 

;

Return to Command State after dialling

 

 

 

^

Turn on calling tone

 

 

 

()

Ignored, may be used to format the dial string

 

 

 

-

Ignored, may be used to format the dial string

 

 

 

<space>

Ignored, may be used to format the dial string

 

 

 

S=n

Dial number previously stored in directory location n using

 

 

AT&Zn command

 

 

ATE *

Command echo

Default :

1

 

ATE0

Inhibits the echoing of commands

 

 

 

ATE1

Enables the echoing of commands

 

 

ATHn

Switch-hook control

Default :

0

 

ATH0

Cause the modem to go on-hook

 

 

 

ATH1

If modem is on-hook, modem goes off-hook, returns an OK

 

 

response, and waits for further commands

 

 

ATIn

Identification

 

 

 

I0

Reports product code

 

 

 

I1

Reports pre-computed checksum from ROM

 

 

 

I2

Computes checksum and compares it with value stored in

 

 

ROM. Reports result as OK or ERROR.

 

 

 

I3

Reports firmware revision

 

 

 

I4

Reports OEM defined identifier string

 

 

 

I5

Reports Country Code parameter

 

 

 

I6

Reports firmware revision

 

 

 

I7

Reports modem data pump model

 

 

ACTIVE Professional External Modem User’s Manual

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