An acoustic coupler is a useful tool for dialing up to the internet when you have a phone available, but no phone jack to plug into. I "built" my own acoustic coupler out of a phone and a 9 volt battery. I say 'built', but really, there was almost no building involved. Here is a crude drawing of the acoustic coupler hooked up to a laptop and ready to connect to the internet through a phone booth.

2600.network is a public service for dial-up users. It's purpose is to allow users of old, vintage, and outdated hardware to dial in with real modems to real systems.

This guide will explain some ways to set up a VoIP ATA so that you can place calls between computers with modems (although any other pair of telephone devices will work.) When done, you will be able to:

• Connect two or more computers with modems directly together using a single ATA
• Connect a computer with a modem to another computer and modem elsewhere in your house over your LAN using two ATAs
• Connect a computer with a modem to another one in someone else's house over the internet

Note that this does NOT involve setting up Asterisk!

A wiki for and of classic Sun Microsystems equipment. Also has some interesting pages about dialup stuff.

V.23 Softmodem for Asterisk with some Bildschirmtext-specific stuff in it. Pretends to be a modem but it actually sets up a telnet-like TCP session to an IP address. Like many things with Asterisk, you have to compile everything from source with this module in a particular location.

This package ports the XMODEM, YMODEM and ZMODEM protocols to Python. We try to implement the protocols as minimalistic as possible without breaking the protocol specifications. All modem implementations must be given a getc callback to retrieve character data from the remote end and a putc callback to send character data.

A modern directory of online BBSes.

An almost complete history of BBSing, from its origins to the present day. Software, stories, people, howtos, histories...