log into your smart SMS solutions bulk SMS account
click on settings on the green menu bar
inside the box beside signature, type your desired signature and
click on update at the bottom
The signature has been saved and whenever you want to send any message at all it automatically includes this at bottom of the message.
Pls take note to leave an allowance for your signature when typing your message at the end of the message.
Of course you cannot use a signature without a bulk sms account, oopen one here for free today.
Watch the video below to see a signature in action.