I only use commercial quality components and systems. Everything I sell has at least a one year warranty. My primary business is service - whatever you buy I will maintain for you.
When you want something special that can only be done by connecting these boxes in an unusual way, call me. When you want a box that's just a little different from any you can buy, call me. When you want one totally different, call me.
Here are some examples. One of my customers
needed his computer to make phone calls to selected people so others could
talk to them without knowing their phone numbers. Another wanted his
computers to exchange information and back up files after everybody went
home for the day and then shut themselves off when they were done. Another
needed to start his computer by making a phone call to it, get information
from it and then shut it off when he was done. One customer wanted his
computer, in response to touch tone commands during a phone call, to
unlatch a door of a building. It might seem ordinary now, but 30 years
ago it was the leading edge.