Project MF is a living, breathing simulation of analog SF/MF telephone signaling just as it was used in the telephone network of the 1950s through the 1980s. It lets you "blue box" telephone calls just like the phone phreaks of yesteryear ... except that it's totally legal!
6/1/2023: The historic Hack Tic Demon Dialer rainbow box of the early 1990s is resurrected!!
3/5/2022: New number! KP+056+ST for "Lenny". Lenny is designed to drive telemarketers crazy. Try to sell him something.
Anonymous callerid on incoming calls is no longer permitted. Calls subject to monitoring and/or recording to prevent abuse.
Updated the 12F683 "old" blue box software to latest version - January 27, 2021
Added in a link to the old hardware blue box on the blue box hardware page - December 7, 2020
The ProjectMF server can be accessed via the PSTN on 630-485-2995. The switch will play back recorded instructions when you dial in. You must have a blue box handy and understand how to use it to have any fun with this.
Please see the ProjectMF Introduction for a gentler introduction if the above makes no sense to you.
A blue box is an electronic device that replicates the tones that were used to switch long-distance telephone calls. They allowed you to route your own calls and bypass normal telephone switching and billing. Blue boxes no longer work in most countries, but they can still be used with Project MF!
Please see the Project MF Blue Box page for details on building your own blue box.
Project MF is a set of modifications ("patches") to the open-source Asterisk PBX software to support in-band signaling. The original Project MF patches were developed by Mark Abene, aka Phiber Optik, in 2005. Since that time additional patches have been developed that make ProjectMF behave a little bit more like the old telephone network, including "wink back."
You don't need to run your own Asterisk or Project MF server to enjoy Project MF -- you can just dial in to our public server. But, if you'd like to set up your own server, the patches can be found on our Project MF Asterisk Patch page.