First post, by mistasparkaru
I got into real computing around 1995 when I saved up for a 486 DX33 with 4MB RAM and just about manged to play Doom2, I really wanted to play multiplayer but no-one I knew even had a PC never mind a modem. To re-live this I have bought 2 old P3 laptops and 2 external US robotics modems.
What I want to do is connect both modems together and play doom2 over the modems (I know there are easier ways but this is something I wanted to do since I started with computers nearly 30 years ago and never manged it)
I connected both modems together with a RJ11 cable and they can connect in hyperterminal and qmodem. I tied to add a 9v battery and 330 ohm resistor in parallel and it connected as normal , then in serial but this stopped the connection, so I stuck with a plain rj11 cable.
I can play doom2 multiplayer with a null serial cable but this isn't what I want to do, I want use the modems
So hers what does work
Windows 98 Hyperterminal - Hyperterminal connects
DOS or windows qmodem - qmodem connects
But all the following result in the same thing, i.e. Doom2 says connecting with the SD and RD LEDs flashing with maybe a garbled response in the modem response text in doom
Using qmodem to connect then exiting to shell and running doom2 with the already connected option
Doom2 to doom2 with the connection string AT S7=55 S0=0 V1 X0 and AT S7=55 S0=0 V1 X0 ATX0
Doom2 to doom2 with the connection string AT&F S7=55 S0=0 V1 X0 and AT&F S7=55 S0=0 V1 X0 ATX0
My modems are connected on COM1 with 0x3f8 and IRQ04 which seems to be what doom2 is looking for
I dont mind buying a phone line simulator which I have seen for about 100 GBP but I dont want to buy it, if its just my connection string thats at fault, or something else silly.
One final thing, the garbled text may be due to me trying lots of AT commands and the modem getting mixed up (which doesnt help troubleshooting)