At 6:06 PM 6/3/96, Michael S. Hagberg wrote: >I recently looked at modem chips and found that it is less expensive >to just use an external modem. With the mass production of modems >I couldn't come close to the price. I just programmed my device to >use Hayse commands over a RS232 line. Michael, 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