Gammu help need

hi there im having a little issues with installing playsms correctly

does any one know how to put a line break when sending from the command line with gammu ?

from example:

Happy Birthday
lots of love
Mum and Dad

thanks in advance
i know not strictly playsms based but appreciate if anyone can help in the mean time while i figure out how to install playsms (
(will remove if not allowed here)

Have you tried to add \n where do you want to break lines?

YES IT DOESNT WORK

thanks for your help