http://telesfor.org/payphones/ 2026-04-17T09:29:03+00:00 http://telesfor.org/payphones/ http://telesfor.org/payphones/lib/exe/fetch.php?media=logo.png text/html 2026-02-25T22:53:23+00:00 admin (admin@undisclosed.example.com) http://telesfor.org/payphones/doku.php?id=smart:elcotel:docu&rev=1772060003&do=diff Documents [Elcotel Series 5 Operation Manual] - original manual by Elcotel [Compact Field Guide for Series-5] - by Elcotel, very useful, incl. init, troubleshooting, error codes etc. [LP Firmware (5.4.2) Operation Manual vol. 2] - very interesting firmware release information for Series 5 / Olympian 5501 explaining all the registers, not described anywhere else. text/html 2025-12-21T04:43:21+00:00 admin (admin@undisclosed.example.com) http://telesfor.org/payphones/doku.php?id=smart:millennium:coinval&rev=1766292201&do=diff Millennium coin validator recalibration Coin validators used in Millennium payphones were made by Landis & Gyr, and they are advanced devices capable of programming a variety of coins to be detected (typically up to 18). There are five sensors that detect different physical parameters, which are tested against predefined values and their ranges. The validator then passes the coin number to the payphone's main board, but the monetary value of each coin is defined in one of the MM tables. A typic… text/html 2025-12-17T04:31:53+00:00 admin (admin@undisclosed.example.com) http://telesfor.org/payphones/doku.php?id=smart&rev=1765945913&do=diff Smart payphones Most of the “smart” payphones utilized either a Quadrum / “Sentinel” housing (shown in the drawing below - left side) or GTE 120B (mostly used by Frontier). They differed by the location of the coin return lever. Some “western text/html 2025-12-05T04:11:48+00:00 admin (admin@undisclosed.example.com) http://telesfor.org/payphones/doku.php?id=smart:millennium:demo&rev=1764907908&do=diff Demo firmware wizard Demo firmware commonly available has rates fixed to 10ct for a 10/11 digit call and 25ct for 7-digit local call. To edit the advertising messages or speed dial buttons you need a hex editor and some experience. It also has several bugs, like some coins not being detected properly (a nickel recognized randomly as 5 or 6 cents, a dollar coin - 9 cents) etc. text/html 2025-10-09T14:48:51+00:00 admin (admin@undisclosed.example.com) http://telesfor.org/payphones/doku.php?id=start&rev=1760021331&do=diff Intro The goal of these wiki pages is to gather and arrange knowledge related to payphones in the US back in a days, and how to bring them back to life. Knowledge database will be continuously updated, drawing from our own experiences, as well as insights from dedicated Facebook and Reddit groups focused on payphones. The primary issue we aim to address is the lack of a structured knowledge base. Existing websites are no longer kept up-to-date, and exploring information in social media groups c… text/html 2025-10-08T16:44:25+00:00 admin (admin@undisclosed.example.com) http://telesfor.org/payphones/doku.php?id=smart:protel:docu&rev=1759941865&do=diff Manuals Protel CTR-201 [CTR-201 manual by GTEL] [Programming the Protel CTR-201 COCOT by El Oscuro] unofficial guide, has more details on rate bands Protel 310 [310 manual by GTEL] Protel 2000 [Protel 6000 pocket reference] - A quick reference, it says 6000 but the actual board is same as the 2000. Protel 7000 [Protel 7000 manual] - complete manual by Protel. Installation, initialization, troubleshooting, specs.