Yes use: \n
The feature ‘forced line break’ using \n is default for the GSM Terminal.
You can send a SMS with the text: Greetings! \nYou are the winner of the week.
and the resulting SMS will read:
You are the winner of the week.
The feature ‘forced line break’ using \n is implemented in the following gateways:
Please contact us, if you need the feature implemented in another gateway.