Emergency Telephone Location Sign Emergency signs indicate the nearest location of, or directions to emergency related facilities (Exits, First Aid, Safety Equipment etc). "AS 2444:2001 Emergency Telephone Location Sign Emergency signs indicate the nearest location of, or directions to emergency related facilities (Exits, First Aid, Safety Equipment etc). Emergency and safety signs are a crucial part of the safety equation, helping you keep your staff safe should the worst happen. And it isn't just factories and warehouses, either - things like first aid and emergency exit signs are essential no matter your industry or business.