Siemens MC55 manual Phone security locks set by client or factory

MC55 AT Command Set

5.4 AT+CLCK

s

mobile

Parameter Description

<facility>(str)

Phone security locks set by client or factory

Primarily intended for the client to take safety precautions, "SC", "PS" and "FD" can be configured individually. "PS" may also be factory set.

Parameter <class> is not applicable to security locks. See examples below for further details.

	“SC“	SIM (lock SIM cards). SIM requests password upon ME power-up and when
		this lock command is issued.
		<password>: SIM PIN1.
	“PS“	Phone locked to SIM card. ME requests password when other than current SIM
		card is inserted.
		"PS" lock is frequently referred to as "phone lock", or "device lock". Accord-
		ingly, the password may be called "phone code" or "device code". The "PS"
		password is not associated with the PUK of the SIM card. If incorrectly entered
		three times, the Master Phone Code is required to lift the lock. This is an 8-digit
		device code associated to the IMEI number of the mobile which can only by
		obtained from the manufacturer of the module. Once the Master Phone Code
		has been acctepted, the mobile is operational, and the "PS" lock is no longer
		active. If needed it must be set once again.
		<password>: User defined password. It is needed before the first use of
		<facility> "PS" and, therefore, must first be specified with AT+CPWD or
		AT^SPWD, if it has not been predefined by factory settings. If set by factory (e.g.
		for a prepaid mobile), the password is supplied by the provider or operator.
	“FD“	SIM fixed dialling memory: If the mobile is locked to "FD", only the phone num-
		bers stored to the "FD" memory can be dialled. (Capacity of FD phonebook
		depending on the SIM card).
		<password>: SIM PIN 2.
		If a lock on the SIM fixed dialing memory is active, the following applies:
		• Outgoing voice, data or fax calls can be made only to numbers stored in
		''FD'' phonebook.
		Result code depends on the type of the call:
		for voice calls, indication is ''+CME Error 257: Call barred''.
		for data and fax calls, indication is ''NO CARRIER''.
		• Access to defined Supplementary Services such as Call barring, Call wait-
		ing, Call forwarding, Call hold and Multiparty is possible only if the exact cor-
		responding public MMI *# code for the desired service is stored in the fixed
		dialing number phone book, and used with ATD.
		AT commands for supplementary service control are barred while "FD" lock
		is active.
		Indication is ''+CME Error 257: Call barred''.
		• Access to Unstructured Supplementary Services (''USSD'') is possible only
		if the exact desired USSD string is stored in the fixed dialling number phone
		book, and used with ATD.
		AT commands for USSD are barred while "FD" lock is active.
		Indication is ''+CME Error 257: Call barred''.
		• SMS can be sent only to phone numbers which are stored in the ''fixed dial-
		ling numbers'' phonebook ''FD''.
		Indication is ''+CMS Error 302: operation not allowed''.
		• GPRS commands can be used only if the ''fixed dialling numbers'' phone-
		book ''FD'' contains an entry with phone number ''*99#''. This single entry
		enables all GPRS commands, including AT commands and modem com-
MC55_ATC_V01.05		Page 116 of 469	2/10/04
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