> > I agree with your thoughts except I'm looking at possibly 10,000 (hopefully > more) devices with modem connectivity. These devices also need to small, > about the size of a 9 volt battery. I'll keep looking for modem chips. > > craig > Have you checked XECOM's data book? All kinds of modem and telephone interface modules, all FCC compliant. Examples:XE9624F, 2.28x1.08x.42 inch, 300/1200/2400 FAX/Data 200mW(5V),50mW in sleep mode, RS232 interface and Tip/Ring. Others up to 28.8 v.34. ********************************************************** *Mike DeMetz SYSCON International * *miked@syscon-intl.com South Bend, IN USA * *aka 73165.1230@compuserve.com using Pegasus Mail * **********************************************************