Most Cell Phones Provide The Option Of Writing sms Messages Using arabic Characters By Changing The language Settings On The Phone. A Short Message Service, Or Sms, Message Is A Message Of 160 Characters That Can Be Sent From One Cell Phone To Another At A Fixed Cost. By Changing The input Language To Arabic, The User Is Able To Compose Messages Using arabic Script Rather Than Latin Script, Which Is Often The Default Setting On A New Cell Phone.