Two collaborators dissect a decommissioned ‘Fortress’ payphone, refining earlier mechanical details and explaining how its coin-relay mechanism generates tone pulses, and warn that Red Box tone timing drifts with outdoor temperature. Read more →

Covers New Jersey Bell’s discontinuation of shared party lines as a disguised rate hike, walks through wiring a home extension phone, and covers repurposing a discarded ‘Fortress’ payphone as an extension. Read more →