| Name | Elcotel WS1231 Payphone |
| Date | 2000 |
| Manufacturer | Elcotel |
Development of the Elcotel WS1231
| The Elcotel WS1231 is a smart COCOT-era payphone widely deployed in the 1990s and early 2000s. Built by Elcotel Inc., it was designed for independent operators needing flexible, programmable rate control rather than Bell central-office coin supervision. Key Characteristics Steel housing (often Fortress-style compatible footprint) Microprocessor-controlled logic board LCD display for prompts and rate messaging Programmable local, LD, and surcharge tables Remote or local diagnostics Compatible with standard analog business lines Programming & Software You’re using PNM 2.2 (Payphone Network Manager) — one of Elcotel’s cleaner Windows-based programming tools. It allowed: Editing rate tables Setting coin triggers Configuring answer supervision parameters Upload/download via modem Your setup — Windows 98 + Hisland 2400 external modem — is period-perfect. The need for two 1µF capacitors between tip and ring when programming through a PBX is common. Many PBX systems filter or block DC/low-frequency signalling used during programming. The capacitors provide AC coupling so modem tones pass while isolating DC conditions that confuse the payphone’s line detection circuitry. Collectors like the WS1231 because it strikes a sweet spot: robust hardware, readable software, and relatively forgiving configuration compared with some Protel or Quadrum units. |
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