Multi-Tech Systems GPRS (MTSMC-G) ユーザーズマニュアル

Chapter 7 – Security Commands 

Multi-Tech Systems, Inc. Wireless GSM/GPRS AT Commands (Document Number S000293I) 

43 

 

Description: 

This command locks, unlocks or interrogates an ME or network facility <fac>. 

 Test SIM cards (with MCC=001 & MNC=01) do not check “PS”, “PN”, “PU”, “PP” and “PC” locks. 

Values: 

<fac> supported facilities: 

“PS”: SIM lock facility with an 8-digit password.  
“SC“: PIN enabled (<mode> = 1) / disabled (<mode> = 0) 
“AO”: BAOC (Barr All Outgoing Calls) 
“OI”: BOIC (Barr Outgoing International Calls) 
“OX”: BOIC-exHC (Barr Outgoing. International Calls except to Home Country) 
“AI”: BAIC (Barr All Incoming Calls) 
“IR”: BIC-Roam (Barr Inc.  When Roaming outside Home Country) 
“AB”: All Barring services 
“AG”: All outGoing barring services 
“AC”: All inComing barring services 
“PN”: Network lock with an 8-digit password (NCK).  
“PU”: Network Subset lock with an 8-digit password (NSCK). 
“PP”: Service Provider lock with an 8-digit password (SPCK). 
“PC”: Corporate lock with an 8-digit password (CCK). 
“FD”: SIM Fixed Dialing Numbers (FDN) memory feature (PIN2 is required as <password>) 

0  unlock the facility 
1  lock the facility 
2  query status 

<class>   A facility status can be changed for only one class, or for all classes (7 or omitted).  

1  Voice (telephony) 
2 

  Data (apply to all bearer services) 

4  Fax (facsimile services) 
8  Short Message service 
7  Equal to all classes (Default value) 

Any attempt to combine different classes will result in activation / deactivation / interrogation of Voice 
and Data. 
If <class> is omitted, the default value 7 will be used. 
Password maximum length is given with the AT+CPWD=? Command. 

 

  It will not possible to lock the FDN phonebook if this one is not loaded. 

AT+CLCK= <fac>,<mode>[,<passwd>[,<class>] ] 

+CLCK: <status> [ ,<class1> ]<CR><LF>+CLCK: <status>,<class2> [ … ] ] 

AT+CLCK=”SC”,1,1234 
Note: Enable PIN 

OK 
Note: PIN was correct 

AT+CLCK? 
Note: Read PIN status 

+CLCK:(“PS”,0),(“SC”,0),(“FD”,0),(“PN“,0),(“PU“,0),(“PP“,0),(“PC“,0) 
OK       
Note: PIN is enabled, no SIM lock, no network lock, no information 
on Call barring (

no longer supported in GSM Technical 

Specification 07.07) 

AT+CLCK=”SC”,0,5555 
Note: Disable PIN 

+CME ERROR: 16 
Note: PIN was wrong 

AT+CPIN=1234 
Note: Enter PIN 

OK 
Note: PIN was good 

AT+CLCK=? 
Note: Request supported 
facilities 

+CLCK: (“PS”,”SC”,”AO”,”OI”,”OX”,”AI”,”IR”,”AB”,”AC”, 
”FD”,"PN","PU","PP",”PN”) 
OK                 Note: Supported facilities 

AT+CLCK=”PN”,1,12345678 
Note: Activate network lock 

OK 
Network lock activated 

AR+CLCK=”AO”,1,1234,2 
Note: Activate all outgoing calls 
except data calls 

OK 
Note: Call barring is activate 

AT+CLCK=”AO”,2 
Note: Query BAOC status 

+CLCK: 1,2 
OK              Note: BAOC activate for data calls only 

AT+CLCK=”SC”,0,0000 
Note: Disable PIN  

+CME ERROR: 521 
Note: PIN deactivation is forbidden with this SIM card