{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.telephone-line","code":"thing-q1373572","url":"https://ver.cy/models/thing/q1373572/","name":"telephone line","alternateNames":["private line"],"kind":"thing","status":"published","version":"0.2.0-wave.1","language":"en","classifiers":{"family":"Thing Registry","category":"Cross-cutting context","entryKind":"thing","plane":"XCT","domain":["XCT.REL"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"A telecommunication circuit, usually a pair of copper wires or an equivalent connection, linking a subscriber to the telephone network, including landlines, private lines between two points and digital replacements over fibre or broadband.","purpose":"Let an agent handle telephone lines by type, provider, faults, migration to digital services, emergency calling and accessibility.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Fixed connection to the network","Copper, fibre or digital voice","Assigned a number","Being migrated to IP in many countries"],"structure":{"bundles":[{"id":"service","name":"Service","description":"The line.","layers":[{"id":"type","name":"Type","description":"Line type.","findings":[{"id":"type-finding","name":"Type","description":"Line type.","questions":[{"text":"Is the line analogue, digital voice or a private leased line?","kind":"definition"},{"text":"Who provides it?","kind":"provenance"}]}]},{"id":"migration","name":"Migration","description":"Digital switchover.","findings":[{"id":"migration-finding","name":"Migration","description":"Digital switchover.","questions":[{"text":"When will analogue lines be switched off here, according to the regulator or operator?","kind":"provenance"},{"text":"What equipment changes are needed?","kind":"provenance"}]}]}]},{"id":"faults","name":"Faults","description":"Problems.","layers":[{"id":"troubleshoot","name":"Troubleshoot","description":"Checks.","findings":[{"id":"troubleshoot-finding","name":"Troubleshoot","description":"Troubleshooting.","questions":[{"text":"Which basic checks can locate the fault, such as testing at the master socket?","kind":"action"},{"text":"How is a fault reported to the provider?","kind":"action"}]}]},{"id":"compensation","name":"Compensation","description":"Delays.","findings":[{"id":"compensation-finding","name":"Compensation","description":"Compensation.","questions":[{"text":"Is automatic compensation available for delayed repairs here?","kind":"provenance"},{"text":"How can a complaint be escalated?","kind":"action"}]}]}]},{"id":"safety","name":"Safety","description":"Emergencies.","layers":[{"id":"emergency","name":"Emergency","description":"Emergency calling.","findings":[{"id":"emergency-finding","name":"Emergency","description":"Emergency calling.","questions":[{"text":"Will the phone still call emergency services during a power cut?","kind":"boundary"},{"text":"Is a battery backup or mobile phone available?","kind":"action"}]}]},{"id":"telecare","name":"Telecare","description":"Alarms.","findings":[{"id":"telecare-finding","name":"Telecare","description":"Telecare.","questions":[{"text":"Does someone rely on a telecare alarm connected to the line?","kind":"boundary"},{"text":"Has the provider been told so the alarm keeps working?","kind":"action"}]}]}]},{"id":"access","name":"Access","description":"Accessibility.","layers":[{"id":"relay","name":"Relay","description":"Text relay.","findings":[{"id":"relay-finding","name":"Relay","description":"Relay services.","questions":[{"text":"Which relay or captioned telephone services are available?","kind":"provenance"},{"text":"How can they be used?","kind":"action"}]}]},{"id":"scams","name":"Scams","description":"Nuisance calls.","findings":[{"id":"scams-finding","name":"Scams","description":"Scam calls.","questions":[{"text":"How can nuisance and scam calls be blocked or reported?","kind":"action"},{"text":"Which services are free?","kind":"provenance"}]}]}]}]},"agentConduct":{"may":["Report the status of a telephone line for its subscriber and explain migration to digital lines.","Check that telecare alarms and emergency calling still work after a line change."],"mustNot":["Disconnect or transfer a line without the subscriber's authority.","Leave a vulnerable person without working emergency calling during a migration.","Intercept or record calls on a line without lawful authority.","Make scam or nuisance calls or help anyone do so."],"requiresHuman":["Disconnecting or migrating a line used by a telecare alarm."]},"ethics":{"considerations":["Older and disabled people rely on landlines for alarms and emergencies.","Calls are private communications protected by law."],"affectedParties":["Subscribers","Telecare users and their carers","People receiving scam calls"]},"owners":{"steward":"The subscriber holds the service; the network operator owns and maintains the line.","roles":[],"masterSystems":["Operator subscriber and number records"]},"relations":[{"target":"Q2901425","type":"parent","note":"registry parent class"},{"target":"Q7695847","type":"parent","note":"registry parent class"},{"target":"telecommunication circuit","type":"related","note":"category"},{"target":"telephone network","type":"related","note":"network"},{"target":"telecommunications operator","type":"related","note":"provider"},{"target":"telephone call","type":"related","note":"service"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.telephone-line","Wikidata: Q1373572 (https://www.wikidata.org/wiki/Q1373572)"]},"properties":{"applicability":"not-applicable","items":[]},"recognition":{"applicability":"optional","items":["Telephone sockets and master boxes","Overhead drop wires","Mobile connections are wireless","Wires on poles or underground, wall sockets and network termination points."]},"capabilities":{"applicability":"required","items":["report and troubleshoot a line fault","understand the switch from analogue to digital voice","check emergency calling during power cuts","find accessible telephone services"]},"hazards":{"applicability":"required","items":["Losing emergency calling in power cuts after digital migration","Telecare alarms failing on new lines","Scam calls"]},"interfaces":{"applicability":"required","items":["ITU-T recommendations","National universal service obligations","Emergency call access rules"]},"context":{"applicability":"required","items":["Voice and data communication.","analogue PSTN lines","ISDN lines","private or leased lines","digital voice over broadband","party lines (historical)"]}},"sources":[{"title":"Wikidata item Q1373572: telephone line","url":"https://www.wikidata.org/wiki/Q1373572","note":"identity and sense of the item"},{"title":"Wikipedia: Telephone line","url":"https://en.wikipedia.org/wiki/Telephone_line","note":"general description of the item"}],"openQuestions":["Should line types be separate entries?","How should migration timelines be linked?","How should telecare compatibility be tracked?"],"resources":{"spec":"/models/things/publications/thing-q1373572/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q1373572/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-11T12:41:36Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"not-applicable","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-06T19:51:54+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass","interaction.properties":"Plane XCT: no invented physical properties."},"score":1.0}}