The best advice here is to put your SFI business on Vacation Mode if you are going away for sometime particularly to places where maybe because of Internet access limitations, you will not be able to do the business effectively.
However, be sure you have a well-funded Standing Order in place to help maintain your ranking and to keep your business viable while away. SFI is largely an online business and with limited or no Internet Access, I do not see how else you can support your downline from wherever you are.
A vacation message left on your email may help to keep down their anxieties while you are away letting them know exactly when you hope to be back.