What you'd need to setup BBS?

The last time I did this I was using 14400 modem, zmodem protocol and a dos software names pegasus.

If you don't mind me asking, why are you trying to setup a bbs ? I mean, what are you trying to accomplish what couldn't be accomplished by other means.

I also didn't understand the part about accessing the internet. Please, if you could elaborate on this, and the above a little more.

if you check out bbbs they have it for linux. i am testing it out on centos 5.5. they seem to have added telnet and ssh options to it. i am still figuring it out though as i was wanting to use it to host my ftp sites for my friends.

Apparently you can run a legacy version of WWIV 4.24 under dosbox. You have to configure the init in WWIV for port 23. I know of someone doing this under windows but have not gotten any response from him on exactly how to do it yet. Also, I hear that you can only do this with one node. I know someone else using the latest version of OS2/warp with VMware and running 4.24.

You may want to check out RenegadeBBS. That's software I used to run on an old BBS. That have an updated version now that's designed to run on the Internet and it looks like the site has information on how to set it up.

EDIT: Scratch that, it looks like the links on the site are dead. They point you to http://bbsfiles.com/main.html

All BBSs (single-line or multi-line) that I'm aware of require modems. And, also to my knowledge, there's no such thing as VoIP modem; you can attach a modem to a VoIP communications network (such as ShoreTel's, for example), but you'll still need to connect the modem to a land line; there's no way to do modem-to-modem communication via TCP/IP (again, to my knowledge).

The original intention of bulletin board systems was to allow people to communicate serially or in parallel (again, single-line vs. multi-line). That function has been pretty well taken care of by e-mail, bulletin board web sites, "Web 2.0" web sites, etc. There's really no need to have a BBS any more.

However, if that's what you want to do, there's nothing stopping you from digging up an old copy of WWIV BBS somewhere (I'm sure it's available for download if you look hard enough; looks like it's here, actually), slapping a modem on one of your physical COM ports, using a virtual machine to set up DOS, the BBS, and connection to the modem, then firing it up and giving your phone number out.

I believe there are Internet gateways to BBSes. They're essentially just ANSI terminals, so something like telnet + VT100 would be the common way, I think. I understand that you want to do this in a more traditional way though.

The closest modern solution would be a terminal connected to a serial-over-IP virtual port, like this:

http://www.virtualserialport.com/products/serial-over-ethernet/

They provide a linux solution there too, but Linux probably has something similar to this built-in, if you look for it. Telnet isn't that different though.

Forget about modems altogether, unless you actually want to dial somewhere. The idea of modulating a digital signal into analog voice, communicating it over a modern, digital, error-corrected, fast, modern network, and then demodulating it and error correcting on the far end before feeding it into the BBS is just non-sensical and redundant. If you DO need to dial another BBS, you would probably do that with a pool of modems connected to analog-level lines, or with some kind of hardware router/gateway that manages a bunch of ISDN lines, for example, but I'm not sure of the details there.

@Raspi could you explain your use case more. For example, you can get much of the same BBS benefit by running phpBB or something like that.