Even if the cellular system is down and you are unable to make phone calls, your smartphone can still be a useful tool. Keep in mind, too, that even when voice calls don’t work due to overloaded circuits, you still may be able to send text messages. It’s not unusual for texting to work even when you can’t make or receive calls with your mobile phone. Plus, there are voice, text, and other useful apps and downloads which can be useful even when the cellular phone system is down. This article recommends apps and gear to help you prepare now, in advance of the need.