The Jolly Box was originally designed by Jolly Roger and Zaphod Beeblebrox in the early 1990s as the ultimate phone phreaking tool. The portable, battery-powered device was a multi-function, multi-frequency (MF) tone generator specifically used for seizing control of and traversing telephone networks.

The original design consisted of two single-sided circuit boards, one serving as the main CPU board running an Intel 80C39 and the other as the daughter board, which contained an EPROM with stored sound samples for audio generation and a simple D/A converter.

In 1996, while part of L0pht Heavy Industries, Joe Grand (aka Kingpin) made additional hardware and firmware modifications to the Jolly Box, including integrating all circuitry onto one double-sided PCB. He was planning to release the updated design in kit form, but the project was abandoned in October 1996.

Documentation:

• Schematics: Main CPU and Daughter Board (PDF and OrCAD SDT)
• PCB: Protel EasyTrax and Altium DXP (drill holes must be added)
• Gerber Plots (drill holes must be added)
• Firmware Modification, Binaries, and 8039/8049 Assembler Ported to PC
• JollyBox v4.3 Function Menu Reference

Other Resources:

• Original Jolly Box Release: JBOX_40F.ZIP
• Software update v4.3: JBOX43.ZIP
• Software update v4.32: JBOX432.ZIP
• Zaphod Beeblebrox’s Blue Box/Jolly Box page