NetComm NTC-220 User Manual page 127

Important – We highly recommended that you use the white list and a password when utilising this feature to prevent unauthorised access.
See the White list description for more information.
Only accept authenticated SMS messages
Enables or disables checking the sender's phone number against the allowed sender white list for incoming
diagnostics and command execution SMS messages.
If authentication is enabled, the router will check if the sender's number exists in the white list. If it exists, the router
then checks the password (if configured) in the incoming message against the password in the white list for the
corresponding sending number. If they match, the diagnostic or command is executed.
If the number does not exist in the white list or the password does not match, the router does not execute the
incoming diagnostic or command in the SMS message.
This is enabled by default and it is strongly advised that you leave this feature enabled to maintain security.
Send Set command acknowledgement replies
The NTC-220 series router will automatically reply to certain types of commands received, such as get commands,
or execute commands. However, acknowledgement replies from the NTC-220 series router are optional with set
commands and the Wakeup command. This option Enables or disables sending an acknowledgment message
after execution of a set command or SMS Wakeup command. If disabled, the router does not send any
acknowledgement after execution of a set command or SMS Wakeup command. All acknowledgment replies are
stored in the Outbox after they have been sent. This can be useful to determine if a command was received and
executed by the router. This option is disabled by default.
Access advanced RDB variables
By default, this option is turned on and allows access to the full list of RDB variables via SMS. When it is turned off,
you are only allowed access to the basic RDB variables listed later in this guide.
Allow execution of advanced commands
By default, this option is turned on and allows execution of advanced commands such as those which are common
to the Linux command line. For example: "execute ls /usr/bin/sms*" to list the contents of the /etc folder on the
router.
When it is turned off you are only allowed to execute the basic commands listed later in this guide.
Send acknowledgement replies to
This option allows you to specify where to send acknowledgment messages after the execution of a set, get, or
exec command.
If a fixed number is selected, the acknowledgement message will be sent to the number defined in the Fixed
number to send replies to field. If the sender's number is selected, the acknowledgement message will be sent to
the number that the SMS diagnostic or command message originated from. The default setting is to use the
sender's number.
Fixed number to send replies to
This field defines the destination number to which error messages are sent after the execution of a get, set, or exec
command. This field is only displayed when Send Error SMS to is set to Fixed Number.
Send command error replies
Enables or disables the sending of an error message resulting from the execution of a get, set, or exec command.
All error replies are stored in the Outbox after they have been sent.
NTC-220 – User Guide
UG01028 v1.2 March 2019
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© NetComm Wireless 2019