| $lang | 
It is assigned to the variable by the __construct() function, it rotates the array values in the "php" file in the "lang" folder in the module file. | 
| $config | 
It is assigned to the variable by the __construct() function, and rotates the array values in the "config.php" file in the module file. | 
| $instance | 
It is assigned to the variable by the __construct() function, transferring the class in the "api.php" file in the module file. It is not a required variable. | 
| $title | 
The __construct() is assigned to the variable by the title() functions, and contains the sender header on the module's settings page. | 
| $body | 
It is assigned to the variable by the body() function, containing the message text to be sent for the SMS. | 
| $numbers | 
It is assigned to the variable by the AddNumber() function, containing the phone numbers to be sent as array. | 
| $error | 
BIf an error occurs, it contains the text for the error. |