Project MF is a living, working simulation of analog SF/MF signaling just as it was used as the standard in the public switched telephone network up until the early 90's, when most everything was cut-over by the regional Bells to the fully-digital SS7/ISDN network as it continues today.
I have maintained a public ProjectMF system for over a year now. At last old-timers, aspiring phone phreaks, and the curious can experience the clandestine thrill of blue boxing their own calls! Lots of the old tricks are possible, including trunk "stacking",as illustrated in one of the Phonetrips recordings.
I just got in a supply of PCBs (printed circuit boards) and programmed PIC microcontrollers for the blue box circuit that was featured at "The Last Hope" conference in Phil Lapsley's talk on "The History of Phone Phreaking". As a service to the community, I am making these available at a nominal cost.
This is perfect for experimenting with ProjectMF.
Email me at
bluebox@projectmf.org for ordering details.
Project MF, and blue box construction information is at:
www.projectmf.org