Insys GSM Small 11-02-01-03-02.001 Benutzerhandbuch

6. Function Description 

27 

ATD22243 

Dial number to which a connection is to be set up (always 
with dialing code, except for special provider numbers). 

 

The call is accepted. The data is exchanged over the GSM 
network. 

 

Changing from data mode to online AT command mode. 
Before and after this “Escape sequence”, there must be one 
second message “Silent” on the TXD line to the INSYS GSM 
small.  
The connection still remains, but no characters are 
transmitted to the other modem anymore. 

 

Hang up (terminate connection to the other party) 

or 
ATO

 

Return to data mode 

 
NO CARRIER

 

The other party has terminated the connection 

 

To call an ISDN TA it is necessary to change to the ISDN protocol V.110. While doing so it 
must be observed that the remote terminal has to work with the same protocol as well. 
Example for V.110 with a data rate of 9600 bps:  AT+CBST=71,0,1 

The connection acceptance for incoming calls takes place either automatically with 
ATS0=x 

or manually by entering ATA after a RING.  

Connections can be terminated as follows: 
 

•  Manually by the ATH command in online command mode 
•  If the remote terminal hangs up 
•  By DTR drop 

Version  1.00 / 09.04