{ "format": "agent-article-v0", "article_id": "EA-119", "canonical_url": "/tools/ea-119-voice-agent", "page_type": "reference", "claim_ids": [], "evidence_ids": [ "EVD-EA-119-URL-079B10BF664E", "EVD-EA-119-URL-79201DC16264", "EA-119-R11-RESEARCH", "EA-119-R11-WEB-READBACK" ], "unknown_ids": [ "EA-119-UNKNOWN-01", "EA-119-UNKNOWN-CURRENTNESS" ], "operational_object_ids": [], "provider": [], "models": [], "plans": [], "surfaces": [], "regions": [], "current_status": "UNKNOWN", "observation_status": "SPEC_ONLY", "freshness": "UNKNOWN", "last_verified": null, "supersedes": [], "superseded_by": [], "provenance": [ "COMM-042-EA0119", "SRC-EA-119-URL-079B10BF664E", "SRC-EA-119-URL-79201DC16264", "WEBBODY-EA0119-R8-C12E19E7" ], "article_sources": [ { "id": "EVD-EA-119-URL-079B10BF664E", "evidence_class": "RESEARCH", "title": "source class: official provider documentation; exact title: Programmable Voice; author/org: Twilio; canonical URL:", "href": "https://www.twilio.com/docs/voice", "supports": [], "limit": "元の監査済み資料に記載された参照先です。URLの復元は、資料の最新性や全主張の支持を新たに検証したことを意味しません。", "origin_class": "SOURCE_PACKET_REFERENCE", "source_or_experiment_ids": [ "SRC-EA-119-URL-079B10BF664E" ], "supporting_locators": [ "EVIDENCE TABLE", "- source class: official provider documentation; exact title: Programmable Voice; author/org: Twilio; canonical URL: https://www.twilio.com/docs/voice" ], "scope": "EVIDENCE TABLE", "provenance_status": "SOURCE_PACKET_REFERENCE_PROJECTED" }, { "id": "EVD-EA-119-URL-79201DC16264", "evidence_class": "RESEARCH", "title": "source class: official provider implementation guide; exact title: Record Phone Calls; author/org: Twilio; canonical URL:", "href": "https://www.twilio.com/docs/voice/tutorials/how-to-record-phone-calls", "supports": [], "limit": "元の監査済み資料に記載された参照先です。URLの復元は、資料の最新性や全主張の支持を新たに検証したことを意味しません。", "origin_class": "SOURCE_PACKET_REFERENCE", "source_or_experiment_ids": [ "SRC-EA-119-URL-79201DC16264" ], "supporting_locators": [ "EVIDENCE TABLE", "- source class: official provider implementation guide; exact title: Record Phone Calls; author/org: Twilio; canonical URL: https://www.twilio.com/docs/voice/tutorials/how-to-record-phone-calls" ], "scope": "EVIDENCE TABLE", "provenance_status": "SOURCE_PACKET_REFERENCE_PROJECTED" }, { "id": "EA-119-R11-RESEARCH", "evidence_class": "RESEARCH", "title": "EA-119 監査済みresearch / canonical revision binding", "supports": [ "Twilioの公式Docsは、Programmable Voiceで発着信、入力収集、録音、transcription、AI agentによる自然な双方向対話・予約などの実装入口を列挙し、録音はinboundのTwiML Recordまたはoutbound Calls APIのrecord parameterで構成できると示す。これにより、音声agentのmedia/control plane、recording artifact、handoffの設計入口は確立する。一方、本人確認の強度、音声生体認証の安全性、割り込み時のASR/turn-taking、録音同意、予約の正確性、human handoffの到達性はこのDocsから確立されない。" ], "limit": "canonical監査・revision bindingの存在を示す。外部ソースcurrentnessが本文またはcontrol-planeで確定していない場合は、currentnessをUNKNOWNのまま保持する。", "origin_class": "AUDITED_CANONICAL_RESEARCH_PACKET", "source_or_experiment_ids": [ "COMM-042-EA0119" ], "supporting_locators": [ "COMM-042-EA0119", "EA-119-R5-LEGACY-MIGRATION-20261008-R1", "content/staging/EA-119.md" ], "scope": "監査済みEA本文・canonical revision・既存Source Graph relationの範囲。欠損currentnessは推測で閉じない。", "provenance_status": "AUDIT_PASS_CANONICAL_BINDING" }, { "id": "EA-119-R11-WEB-READBACK", "evidence_class": "IMPL", "title": "EA-119 Web body identity / canonical readback", "supports": [ "canonical staging bodyのSHA-256一致とR9 canonical ledger readbackをProduction projectionの入力として検証する。" ], "limit": "body identity/readbackは本文claim自体の真偽や外部ソースの最新性を追加保証しない。", "checked_at": null, "origin_class": "IMPLEMENTATION_READBACK", "source_or_experiment_ids": [ "WEBBODY-EA0119-R8-C12E19E7" ], "supporting_locators": [ "WEBBODY-EA0119-R8-C12E19E7", "content/staging/EA-119.md", "EA-119-R5-LEGACY-MIGRATION-20261008-R1" ], "scope": "R9/R10 canonical readback後のProduction生成時body identity。", "provenance_status": "CANONICAL_READBACK_BODY_HASH_MATCH" } ], "research_sections": [ { "heading": "WHY_THIS_MATTERS_TO_UPDATE", "text": "電話受付・予約・CSでは、割り込み会話、本人確認、録音、handoff、予約/支払などの外部作用が連続する。音声機能の存在と、本人性・同意・誤認識・業務完了を混同しない更新棚が必要。" }, { "heading": "SCOPE_ROUTING", "text": "application / provider mapping / interoperability / governance / privacy / security / audit" }, { "heading": "CLAIM_OR_RESEARCH_QUESTION", "text": "公開音声APIは、通話、割り込み入力、録音、文字起こし、virtual agent、予約、human handoffの実装入口を提供するか。API capabilityは本人確認・同意・音声認識精度・業務成功を保証するか。" }, { "heading": "EVIDENCE TABLE", "text": "- source class: official provider documentation; exact title: Programmable Voice; author/org: Twilio; canonical URL: https://www.twilio.com/docs/voice; publication/update/access: current docs, copyright/page state 2026 / accessed 2026-09-13 JST; version/release/tag/commit/API revision/model ID: Programmable Voice current docs, no single pinned runtime release on page; supporting locator: lines 125-127（applicationで発着信）、187-197（appointment reminder、inbound call center、recording、AI/ML transcription、AI agents/booking appointments）、204-220（Voice API/TwiML resources）; evidence label: VERIFIED_SPEC + PRODUCT_VOLATILE; relation: support / limit.\n- source class: official provider implementation guide; exact title: Record Phone Calls; author/org: Twilio; canonical URL: https://www.twilio.com/docs/voice/tutorials/how-to-record-phone-calls; publication/update/access: current guide accessed 2026-09-13 JST; version/release/tag/commit/API revision/model ID: Programmable Voice current guide; supporting locator: lines 162-167（inbound Record、outbound record parameter、AI/ML transcription/virtual agents）、319-321（record inbound call）、227-316（account credentials prerequisite）; evidence label: VERIFIED_SPEC + PRODUCT_VOLATILE; relation: support / availability-limit." }, { "heading": "FINDINGS", "text": "Twilioの公式Docsは、Programmable Voiceで発着信、入力収集、録音、transcription、AI agentによる自然な双方向対話・予約などの実装入口を列挙し、録音はinboundのTwiML Recordまたはoutbound Calls APIのrecord parameterで構成できると示す。これにより、音声agentのmedia/control plane、recording artifact、handoffの設計入口は確立する。一方、本人確認の強度、音声生体認証の安全性、割り込み時のASR/turn-taking、録音同意、予約の正確性、human handoffの到達性はこのDocsから確立されない。" }, { "heading": "LIMITS / COUNTEREVIDENCE / FAILURE ENVELOPE", "text": "providerの通話制御が存在しても、発話の聞き間違い、同音異義、dialect/noise、caller spoofing、録音開始前の発話欠落、handoff失敗、二重予約、recording URL漏えいを排除しない。録音・本人確認・支払・緊急用途は法域/業界/契約の別ゲート。" }, { "heading": "AVAILABILITY_GATES", "text": "Twilio account、voice-enabled number、credentials、地域/国、carrier、compliance profile、API quota、recording/transcription機能、provider契約、受託処理/DPA、human queue availabilityを確認する必要がある。実アカウント・実通話・実録音は未実施。" }, { "heading": "IMPLEMENTATION_STATE", "text": "low-risk FAQ→予約候補生成→explicit confirmation→human handoffの段階設計を提案。identity proofing・payment・契約変更はagent単独許可しない。実装・録音同意フロー試験未実施。" }, { "heading": "BENCHMARK_OR_EVAL", "text": "synthetic audio/call fixtureでbarge-in、ASR/WER、intent/slot accuracy、identity challenge failure、recording notice state、handoff time、duplicate booking、abstain/escalationを別score化する。実測なし。" }, { "heading": "SECURITY / PRIVACY / AUDIT / COST / OPERABILITY", "text": "SECURITY/PRIVACY: raw audio/PIIをsynthetic先行、biometric dataは扱わない。AUDIT: call ID、prompt/model/telephony config、recording/transcript IDs、confirmation actor/time、handoff。COST: minutes、transcription、model/tool、human handoff。OPERABILITY: timeout、repeat-back、no-match escalation、kill switch、retention/deletion。" }, { "heading": "SAFE_WORDING_FOR_FUTURE_BOOK", "text": "「Twilio Programmable Voiceの公式Docsは発着信、録音、transcription、AI agent/予約の実装入口を示す。これは音声業務の技術的control pointの証拠であり、本人確認、同意、ASR精度、予約成功、法的適合、human handoffを保証しない。」" }, { "heading": "UPDATE_WORK_HANDOFF", "text": "本文改訂では、media/telephony capability、録音/文字起こし、identity gate、業務action、human handoff、retentionを別列にする。Twilio以外のproviderと、現行SDK/API release・地域・carrier条件を追加採集する。" }, { "heading": "OPEN_UNKNOWN", "text": "voice model/API版別の割り込み性能、録音同意・通知の法域差、音声生体認証の許容範囲、handoff/予約失敗率、外部carrier/地域差、実tenantのretention。" }, { "heading": "STOP_CONDITION", "text": "通話接続・録音成功・音声応答を本人確認済み・同意済み・業務完了と扱わない。実電話番号・実顧客データ・支払情報で試験しない。\nUNIT_CLOSE_STATUS: INDIVIDUAL_BOUNDED_CLOSE / EVIDENCE_RECORDED / UNKNOWN_PRESERVED\n\n---" } ], "human_url": "/tools/ea-119-voice-agent", "markdown_url": "/agent/article.md?path=%2Ftools%2Fea-119-voice-agent", "json_url": "/agent/article.json?path=%2Ftools%2Fea-119-voice-agent" }