Samsung SCH-A670

Hey guys, I have resorted back to using this phone after yet another LG Chocolate bit the dust(no surprise there). When texting on the chocolate I am used to having the ability to go beyond the 160 character limit on a txt and adding another page if needed to do so but with this phone it cuts it off immediately at 160 characters and there are no options to continue on to a second page if needed. Anyone know if it is possible to do so on this phone or if we are stuck with the 160 character limit when composing a txt message. Thanks in advanced.