Elcotel custom firmware tool

Create firmware for Elcotel 5 and 5501 (Olympian) payphones with rates and options built in. No remote programming is required. Burn the download with an EPROM programmer or order a ready-to-install chip for $25 including shipping.

• Use a preset rate file, paste a code from the Rate tool, or upload your own R94.
• Set the options below. We only kept the most essential for clarity. For more settings, see the Elcotel documentation. Most can be changed on the phone.
• Many other improvements over the stock firmware from the 90s. See the 5.9.0 changelog.
• Install the EPROM, default the phone, dial #99999999 to enter telemetry, then dial 998 to load the rates and options. See detailed manual.
• Remote programming still possible like stock firmware.