[-contactProperty#'Description'] - If you want to save the input from your form directly into an existing contact property, such as company name, then add the contact property parameter to your $Input command. The ID of the property is placed after the -contactProperty text (e.g., -contactProperty7 ... where 7 is the ID of the contact property desired).
Example: A Contact's First Name
Enter Your First Name: $input -contactProperty1'First Name' -id'FirstName'$
In the example above, the first name of the contact is captured and saved into the iService database for the contact.