Be connected at work - Intrinsically Safe and Non-Incendive cell phones, GMS and CDMA - simply put your SIMM card in the new phone and it's ready for use in hazardous locations.
GSM Network Phones (AT&T):
Class 1, Div 1: http://www.reliabilitydirectstore.com/Intrinsically-Saf...e-p/eco-as000120.htm
Class 1 Div 2:
CDMA Network Phone (Verizon):
Class 1, Div 2: http://www.reliabilitydirectstore.com/product-p/eco-as000035.htm