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Chapter 13 – Specific AT Commands  
Multi-Tech Systems, Inc. Wireless GSM/GPRS AT Commands (Document Number S000293I) 
109 
  
General Indications   +WIND 
Description:
  
This command provides a general mechanism to send unsolicited non-standardized indications to the 
application. The indicators are: 
• 
Indication of a physical change on the SIM detect pin from the connector (meaning SIM inserted, 
SIM removed) 
• 
Indication during mobile originated call setup that the calling party is ringing. 
• 
Indication of the availability of the product to receive AT commands after boot. 
• 
NITZ indication (Network Information and Time Zone) 
For each of these indications, a “bit flow” has to be indicated.  
Values:
 <IndLevel> 
 
No unsolicited “+WIND: <IndNb>” will occur. 
Default.   
(bit-0)  
Hardware SIM Insert/Remove indications or SIM presence after software reset. 
2 (bit-1)  
Calling party alert indication. 
4 (bit-2)  
Product is ready to process AT commands (except phonebooks, AOC, SMS), but 
still in emergency mode. 
8 (bit-3)  
The product is ready to process all AT commands at the end of init or after 
swapping to ADN in case of FDN configuration 
16 (bit-4) 
A new call identifier has been created (after an ATD command, +CCWA indication) 
32 (bit-5)  
An active, held or waiting call has been released by network or other party 
64 (bit-6)  
Network service available indication 
128 (bit-7) 
Network lost indication 
256 (bit-8) 
Audio ON indication 
512 (bit-9) 
SIM phonebooks reload status 
1024 (bit-10)  SIM phonebooks checksum indication 
2048 (bit-11)  Interruption indication (only if FTR_INT is activated) 
4096 (bit-12)  Hardware rack open/closed indication 
8192 (bit-13) NITZ 
indication 
16384 (bit-14)   SMS service ready indication 
Combination (addition of the values) is used to allow more than one indication flow:  
0 ≤ IndLevel ≤ 
32767 
• 
To activate a specific WIND indication, <IndLevel> must have a value described above. 
AT+WIND=16384 only activates SMS service indication. 
• 
To activate several WIND indications, <IndLevel> must have a value just before the last 
indication required. 
AT+WIND=32767 all unsolicited indications. 
<event>  
 
0  
The SIM presence pin has been detected as “SIM removed”  
1  
The SIM presence pin has been detected as “SIM inserted” 
2  
Calling party is alerting 
3  
Product is ready to process AT commands (except phonebooks, AOC, SMS), at init or after 
AT+CFUN=1 
4  
Product is ready to process all AT commands, end of phonebook init or swap (FDN to ADN) 
5  
Call <idx> has been created (after ATD or +CCWA…) 
6  
Call <idx> has been released, after a NO CARRIER, a +CSSU: 5 indication, or after the 
release of a call waiting. 
7:  
The network service is available for an emergency call. 
8  
The network is lost. 
9  
Audio ON. 
10  
Show reload status of each SIM phonebook after init phase (after Power-ON or SIM 
insertion). 
11    
Show the checksum of SIM phonebooks after loading. 
12    
An interruption has occurred. 
13 
The rack has been detected as Closed.