Specifications

Chapter 5 – Security Commands
Multi-Tech Systems, Inc. AT Commands for EDGE (E1) Modems (S000474A) 80
• GPRS commands can be used only if the “fixed dialing numbers” phonebook
“FD” contains an entry with phone number “*99#”. This single entry enables
all GPRS commands, including AT commands and modem compatibility
commands like “ATD*99***1#” or “ATD*98***1#”.
Indication is “+CME Error 257: Call barred”.
Factory Defined SIM Locks:
Important Note: Multi-Tech does not lock SIM Cards.
Typical examples of factory set SIM locks are prepaid phones or network locks, used to restrict the operation
of a mobile to a specific provider or operator. The client should be aware that each of these lock types can
only be unlocked if the associated password is available. For example, a mobile can be locked to accept
only SIM cards from the respective provider, or even one single SIM card. Once a different SIM card is
inserted the ME will prompt the client to enter a specific code. This is not the PUK of the SIM card, but
usually an 8-digit code which needs to be requested from the provider.
The locks can only be set by the manufacturer and need to be agreed upon between the parties concerned;
e.g., provider, operator, distributor etc. on the one side and the manufacturer on the other side.
Parameter <class> is not applicable to SIM locks.
<password> and instructions for unlocking must be obtained from the network provider.
“PF“ lock Phone to the very First SIM card.
“PN“ Network Personalization
“PU“ Network subset Personalization
“PP“ Service Provider Personalization
“PC“ Corporate Personalization
Supplementary Service Call Barring:
Supplementary Service “Call Barring” allows to specify conditions under which calls will be disallowed by the
network. The availability of the Supplementary Services varies with the network. To benefit from call barring
the client will need to subscribe them, though a limited number of call barring types may be included in the
basic tariff package.
When you attempt to set a <facility> or <class> which is not provisioned, not yet subscribed to, or not
supported by the module, the setting will not take effect regardless of the response returned. The responses
in these cases vary with the network (for example “OK”, “+CME ERROR: Operation not allowed”, “+CME
ERROR: Operation not supported” etc.). To make sure check the extended error response with AT+CEER
and the lock status with <mode>=2.
<password>: Network password supplied from the provider or operator. Usually there is one password which
applies to all call barring options. For details contact your provider.
“AO“ BAOC (Bar All Outgoing Calls) “OI“ BOIC (Bar Outgoing International Calls)
"OI" BOIC (Bar Outgoing International Calls)
“OX“ BOIC-exHC (Bar Outgoing International Calls except to Home Country)
“AI“ BAIC (Bar All Incoming Calls)
“IR“ BIC-Roam (Bar Incoming Calls when Roaming outside the home country)
“AB“ All Barring services (applicable only for <mode>=0)
“AG“ All outGoing barring services (applicable only for <mode>=0)
“AC“ All inComing barring services (applicable only for <mode>=0)
<mode>
0 unlock
1 lock
2 query status
<status>
0 lock is inactive
1 lock is active
<password>
Password string used to lock and to unlock a <facility>. Length and authority for passwords depend on the
<facility> in question and are therefore listed in the section on parameter <facility>. Passwords can be modified
with AT+CPWD or AT^SPWD.
<class>
Integer or sum of integers each representing a class of information; i.e., a bearer service, telecommunication
service or bearer service group as defined in “GSM 02.04”.
1 voice
2 class 2 (“data”) comprises all those individual data classes between 16 and 128, that are supported both by
the network and the MS. This means, a setting made for class 2 applies to all individual data classes (if
supported). In addition, you can assign a different setting to a specific class. For example, you can activate
Call Forwarding for all data classes, but deactivate it for data class 64, “dedicated packet access”.
8 SMS
16 data circuit sync
32 data circuit async
64
dedicated packet access
128 dedicated PAD access