This page shows the current inbound SMS configuration. Each number can be enabled for any or all of the control functions Shoulder-Tap and Relay Control or the data function SMS Tunnel .
The message format for SMS control is: function [index] [action]. The function is always required, but the index may be omitted if there is only a single device corresponding to the function; and for some functions, there is only a single action, so the action may be omitted in those cases as well. All text is case-insensitive.
Shoulder-Tap function can be used to bring up the cellular connection. Since this function has only one action ("on"), the message text should be "shoulder-tap".
Relay Control function can be used to turn a relay on or off.
To turn a relay on, the text should be "relay 1 on", or on a device with a single relay, just "relay on".
To turn a relay off, the text should be "relay 1 off", or on a device with a single relay, just "relay off".
Enabling SMS Tunnel allows the SMS content to be written on applicable serial lines.
Transmit Line allows the SMS content to be written on all or selected serial line.