AT Commands

Call Progress / Connect Speed Messages X

The X command selects response code/message displays and dialing options such as call progress monitoring, busy signal or dial tone detection and blind dialing.

Command

Operation

 

 

X

Dial tone and busy signal detection not selected;

 

CONNECT (code 1) response messages displayed

 

for all speeds

 

 

X1

Dial tone and busy signal detection not selected;

 

appropriate CONNECT response messages or codes

 

displayed for data rate

 

 

X2

Dial tone detection only; NO DIAL TONE message

 

or code appears if dial tone not detected within 5

 

seconds

 

 

X3

Busy signal detection only; BUSY message or code

 

appears if dialed number is busy

 

 

X4

Dial tone and busy signal detection; appropriate

 

CONNECT message or code displayed

 

 

The X command followed by a dial command makes the modem go off hook, wait the amount of time set in register S6, and dial the number. If connection is made, the modem returns a CONNECT (code 1) message to the screen regardless of the connection rate. With a basic response, the modem does not detect a busy or no dial tone condition.

The X1 command followed by a dial command makes the modem go off hook, wait the amount of time set in register S6, and dial the number. If connection is made the modem returns an appropriate CONNECT message or code to the screen. The modem does not detect a busy or no dial tone situation.

The X2 command followed by a dial command makes the modem go off hook and wait for a dial tone before dialing. If a dial tone is not detected within 5 seconds, the modem sends a NO DIALTONE message and hangs up. The modem does not detect a busy situation in this mode.

Modem 3600

5-7

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Black Box 3600 MODEM manual Call Progress / Connect Speed Messages