I have a pair of legacy applications that connect to each other through a phone line by use of external serial modems. I want to replace the telephone line with an Internet connection. The objective is to have a hardware device on each end connected to the computer exactly as the modem was, with this device behaving just like a modem (AT commands, etc.). Preferably, the devices should establish a connection when the modem would dial and drop the connection when the modem would hang up, as opposed to being an "always on" connection.
PC ---[RS-232]--- device server --- Internet --- device server ---[RS-232]--- PC
I found a few products:
Both advertise a 'modem emulation' feature, which is what I want, but I thought I'd ask someone who may have used these devices in the past.
Will these devices accomplish what I have to do? Does anyone have any suggestions for other products designed for this kind of thing?
I sincerely thank everyone for the assistance.