Insys GSM 4.2 Compact 11-02-01-03-04.002 Benutzerhandbuch

Functions and their Configuration 

 

INSYS GSM 4.2  

INSYS GSM 4.2 compact 

 

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Sep-06

 

When this option is activated, the INSYS GSM will only accept connections from the 
specified phone numbers. You have the option to allow entire number blocks; the wild 
card character * replaces exactly any one digit. The selective call acceptance is also valid 
for data and voice connections as well as incoming SMS commands.  

 

 

Note 
To use this function, the caller may not deactivate the calling line 
identification presentation (CLIP). 

 

Note 
The selective call acceptance is only active after a device reset. 

The allowed number has to be entered in exactly the same format as it is output for a call 
with "+CLIP: ….” (without ""). The transmitted format of the number may depend on the 
provider – e.g. the leading "+49" may be replaced by "0049".  

 

 

Note 
We urgently recommend verifying the number by placing a test call. 

Procedure: Configure selective call acceptance 
1. 

In the tab "Access control" in the group "Selective call acceptance", activate the 
control box "Only accept calls from these numbers". 

2. 

Enter the requested numbers in the entry fields. 

3. 

Perform a reset. (see Chap. 2.8.2 ) 

Pertinent AT commands 

Selective Call Answer 

Device reset 

Non-authorized numbers 
The INSYS GSM will reject calls from non-authorized numbers immediately to keep the 
line free. These calls can also not be accepted manually (ATA). The caller receives the sig-
nal BUSY. 

 

The GMS engine will then work with the setting AT+CLIP=1. For each incoming call, the 
following phone number is displayed as well:  
Ring 
+CLIP: „+49941560061“,145,,,,0