Initial Testing Setup
Well managed to get everything talking, the setup is as follows...
Setup to allow me to dial between the machines, the PBX has 8 ports and 3 external lines. Eventually the idea is to connect the incoming modems to it and allow incoming connections via dialup.
Hayes Acura Modem
This is currently the modem I'm using for development as its a great modem and is pretty solid. Its one of 4 that I have which are brand new and still in their boxes.
This is connected to my development PC using a serial to USB adapter, eventually I either want to use the USB modems or have the 4 Acura modems connected to a serial card.
This is a black and white VideoTex terminal from Alcatel. It was a new boxed item that hasn't been used and would have probably been the sort of terminal used in France up until the demise of Minitel in 2012.
BT 746 Rotary Telephone
I acquired this the other day to complete my 80s retro desk setup. It is pulse dial only and does not work with the PBX but I have a new DTMF upgrade to fit to it before the end of the challenge. There's is something quite satisfying about dialing the modem with it.
Used Putty to create a terminal connection to the modem, manually setup the modem using AT commands and set it to auto answer.
Dialled into the modem from the Terminal and they connected ok.
Once in could type on both Terminal and Putty and they were exchanging data correctly.