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German Translation Quality Audit — de/ Documentation

Date: 2026-04-21 Scope: All 138 .mdx files under documentation/de/ Checklist:

1. Du-Form — no Sie/Ihr/Ihnen (hard fail)
2. Umlaute korrekt — no ASCII substitutions like ae/oe/ue/ss for ä/ö/ü/ß (hard fail)
3. Natürlicher Sprachfluss
4. Deutsche Terminologie
5. Konsistente Begriffe
6. Keine englischen Satzmuster

Summary: 21 files FAIL (all on checklist item 2 — umlaut ASCII substitutions). 0 files fail on item 1 (Sie/Ihr/Ihnen). 117 files PASS.

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accounts/account-settings.mdx

PASS — Du-form throughout. Umlauts correct. Natural German flow. Terminology consistent.

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accounts/agency-playbook.mdx

PASS — Du-form throughout. Umlauts correct. Well-structured German prose.

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accounts/agency-settings.mdx

PASS — Du-form throughout. Umlauts correct. Clean terminology.

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accounts/api-keys.mdx

PASS — Du-form throughout. Umlauts correct.

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accounts/authentication.mdx

PASS — Du-form throughout. Umlauts correct.

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accounts/creating-accounts.mdx

PASS — Du-form throughout. Umlauts correct.

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accounts/integrations.mdx

PASS — Du-form throughout. Umlauts correct.

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accounts/operating-model.mdx

PASS — Du-form throughout. Umlauts correct. Natural German. Well-written.

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accounts/overview.mdx

PASS — Du-form throughout. Umlauts correct.

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accounts/secrets.mdx

PASS — Du-form throughout. Umlauts correct.

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accounts/security.mdx

PASS — Du-form throughout. Minimal body; umlauts correct in what is present.

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accounts/subaccounts.mdx

PASS — Du-form throughout. Umlauts correct.

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accounts/team-management.mdx

PASS — Du-form throughout. Umlauts correct.

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accounts/user-profile.mdx

PASS — Du-form throughout. Umlauts correct.

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accounts/webhook-implementation.mdx

PASS — Du-form throughout. Umlauts correct.

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accounts/webhooks.mdx

PASS — Du-form throughout. Minimal body; umlauts correct.

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api-reference/introduction.mdx

PASS — Du-form throughout. Umlauts correct.

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api-reference/python-sdk.mdx

PASS — Du-form throughout. Umlauts correct.

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api-reference/sdks.mdx

PASS — Du-form throughout. Umlauts correct.

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api-reference/typescript-sdk.mdx

PASS — Du-form throughout. Umlauts correct.

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billing/faq.mdx

PASS — Du-form throughout. Umlauts correct.

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billing/overview.mdx

PASS — Du-form throughout. Umlauts correct.

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billing/phone-numbers.mdx

PASS — Du-form throughout. Umlauts correct.

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billing/plans.mdx

PASS — Du-form throughout. Umlauts correct.

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billing/premium-features.mdx

PASS — Du-form throughout. Umlauts correct.

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build/advanced/announcements.mdx

FAIL — Item 2: ASCII umlaut substitutions Examples (in the German example text block, lines ~136–138):

• "gefuehrt" → should be "geführt"
• "Qualitaetszwecken" → should be "Qualitätszwecken"

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build/advanced/conversation-privacy-controls.mdx

PASS — Du-form throughout. Umlauts correct.

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build/advanced/data-retention.mdx

PASS — Du-form throughout. Umlauts correct.

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build/advanced/dtmf-controls.mdx

PASS — Du-form throughout. Umlauts correct.

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build/advanced/dynamic-context.mdx

PASS — Du-form throughout. Umlauts correct.

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build/advanced/inactivity-timeout-settings.mdx

PASS — Du-form throughout. Umlauts correct.

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build/advanced/mcp-servers.mdx

FAIL — Item 2: Pervasive ASCII umlaut substitutions Examples:

• "Faehigkeiten" → "Fähigkeiten"
• "Waehrend des Gespraechs" → "Während des Gesprächs"
• "fuegst" → "fügst"
• "oeffnen" → "öffnen"
• "aendern" → "ändern"
• "auswaehlen" → "auswählen"
• "ausfuehren" → "ausführen"
• "noetig" → "nötig"
• "Aenderungen" → "Änderungen"

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build/advanced/recording-opt-out.mdx

PASS — Du-form throughout. Umlauts correct.

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build/advanced/smart-filler.mdx

PASS — Du-form throughout. Umlauts correct.

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build/advanced/turn-taking-and-timing.mdx

PASS — Du-form throughout. Umlauts correct.

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build/advanced/vad-turn-detection.mdx

PASS — Du-form throughout. Umlauts correct.

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build/advanced/voicemail-handling.mdx

PASS — Du-form throughout. Umlauts correct.

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build/analytics/conversation-goals.mdx

PASS — Du-form throughout. Umlauts correct.

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build/analytics/gather-insights.mdx

PASS — Du-form throughout. Umlauts correct.

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build/analytics/overview.mdx

PASS — Du-form throughout. Umlauts correct. Natural German flow throughout.

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build/analytics/post-call-automation.mdx

PASS — Du-form throughout. Umlauts correct.

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build/basic-config/agent-identity.mdx

PASS — Du-form throughout. Umlauts correct.

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build/conversation/greeting-messages.mdx

FAIL — Item 2: Pervasive ASCII umlaut substitutions Examples:

• "Begruessungen" → "Begrüßungen"
• "fuer" → "für"
• "hoeren" → "hören"
• "Waehle" → "Wähle"
• "natuerliches" → "natürliches"
• "Einfuehrung" → "Einführung"
• "haeufig" → "häufig"
• "koennen" → "können"
• "Aeusserungen" → "Äußerungen"
• "enthaelt" → "enthält"
• "Ueberschreibungen" → "Überschreibungen"

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build/conversation/prompt-engineering-guide.mdx

FAIL — Item 2: Pervasive ASCII umlaut substitutions Examples:

• "Personlichkeit" → "Persönlichkeit"
• "Gespraeche" → "Gespräche"
• "hoeren" → "hören"
• "laeuft" → "läuft"
• "muessen" → "müssen"
• "Einwaende" → "Einwände"
• "koennen" → "können"
• "naechste" → "nächste"
• "moechte" → "möchte"
• "spaeter" → "später"
• "haeufige" → "häufige"

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build/conversation/prompt-templates.mdx

FAIL — Item 2: Pervasive ASCII umlaut substitutions Examples:

• "enthaelt" → "enthält"
• "geschuetzt" → "geschützt"
• "Fuer" → "Für"
• "naechste" → "nächste"
• "Oeffnungszeiten" → "Öffnungszeiten"
• "Verfuegbarkeit" → "Verfügbarkeit"
• "Vorlaeufige" → "Vorläufige"
• "oeffnen" → "öffnen"
• "Personlichkeit" → "Persönlichkeit"
• "Naechste" → "Nächste"

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build/conversation/prompt.mdx

FAIL — Item 2: Multiple ASCII umlaut substitutions Examples:

• "Zaehler" → "Zähler"
• "vergroessere" → "vergrößere"
• "einfuegt" → "einfügt"
• "oeffnet" → "öffnet"
• "bewaehrte" → "bewährte"
• "Anwendungsfaelle" → "Anwendungsfälle"
• "eingefuegt" → "eingefügt"
• "erklaeren" → "erklären"
• "Gespraeche" → "Gespräche"

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build/conversation/runtime-data-flow.mdx

FAIL — Item 2: Several ASCII umlaut substitutions Examples:

• "Gewuenschtes" → "Gewünschtes"
• "heisst" → "heißt"
• "Einschraenkung" → "Einschränkung"
• "nuetzlich" → "nützlich"
• "Gespraeche" → "Gespräche"

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build/conversation/template-syntax.mdx

FAIL — Item 2: Some ASCII umlaut substitutions Examples:

• "Grossbuchstaben" → "Großbuchstaben"
• "Laenge" → "Länge"
• "zurueckgibst" → "zurückgibst"
• "verfuegbar" → "verfügbar"

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build/conversation/variable-sources.mdx

FAIL — Item 2: Minor ASCII umlaut substitutions Examples:

• "erhaelt" → "erhält"
• "Gespraechsfelder" → "Gesprächsfelder"

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build/getting-started/agent-editor.mdx

PASS — Du-form throughout. Umlauts correct.

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build/getting-started/create-first-agent.mdx

PASS — Du-form throughout. Umlauts correct.

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build/getting-started/share-agent-demo-links.mdx

PASS — Du-form throughout. Umlauts correct.

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build/knowledge/architecture.mdx

FAIL — Item 2: Multiple ASCII umlaut substitutions Examples:

• "erklaert" → "erklärt"
• "buendelt" → "bündelt"
• "grosse" → "große"
• "koennen" → "können"
• "erklaeren" → "erklären"
• "Ruecksendeprozess" → "Rücksendeprozess"
• "Loeschsymbol" → "Löschsymbol"
• "ueberall" → "überall"

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build/knowledge/assign-knowledge.mdx

FAIL — Item 2: Several ASCII umlaut substitutions Examples:

• "oeffnest" → "öffnest"
• "auszuwahlen" → "auszuwählen"
• "uebersteigt" → "übersteigt"
• "auswaehlst" → "auswählst"

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build/knowledge/content-types.mdx

FAIL — Item 2: Minor ASCII umlaut substitutions Examples:

• "ueberfluessige" → "überflüssige"
• "Groesse" → "Größe"
• "fehlschlaegt" → "fehlschlägt"

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build/knowledge/context-vs-rag.mdx

FAIL — Item 2: Multiple ASCII umlaut substitutions Examples:

• "grosse" → "große"
• "Groessere" → "Größere"
• "Suchverzoegerung" → "Suchverzögerung"
• "hoeheren" → "höheren"
• "abhaengig" → "abhängig"
• "gewaehlt" → "gewählt"
• "haengt" → "hängt"
• "unvollstaendige" → "unvollständige"
• "widerspruechliche" → "widersprüchliche"
• "aufgeloest" → "aufgelöst"

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build/knowledge/create-knowledge-bases.mdx

FAIL — Item 2: Pervasive ASCII umlaut substitutions Examples:

• "Fuellen" → "Füllen"
• "Ueberwachen" → "Überwachen"
• "Navigationsmenue" → "Navigationsmenü"
• "Hauptmenue" → "Hauptmenü"
• "auswaehlen" → "auswählen"
• "Dokumentzaehler" → "Dokumentzähler"
• "Fuege" → "Füge"
• "ausfuehren" → "ausführen"
• "verknuepfe" → "verknüpfe"
• "Inhaltsqualitaet" → "Inhaltsqualität"

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build/tools/booking-calendar.mdx

FAIL — Item 2: Multiple ASCII umlaut substitutions Examples:

• "KI-gestuetzte" → "KI-gestützte"
• "Verfuegbarkeiten" → "Verfügbarkeiten"
• "bestaetigen" → "bestätigen"
• "Bestaetigungen" → "Bestätigungen"
• "Verfuegbarkeitsfenster" → "Verfügbarkeitsfenster"
• "Koennen" → "Können"
• "Personenliche" → "Persönliche" (also a typo)
• "Komplexitaet" → "Komplexität"
• "zukuenftige" → "zukünftige"

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build/tools/calculator.mdx

FAIL — Item 2: Multiple ASCII umlaut substitutions Examples:

• "Menuepunkt" → "Menüpunkt"
• "loeschen" → "löschen"
• "zusaetzlichen" → "zusätzlichen"
• "Ausdruecke" → "Ausdrücke"
• "unterstuetzen" → "unterstützen"
• "praezise" → "präzise"
• "Gedaechtnis" → "Gedächtnis"
• "loesen" → "lösen"

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build/tools/custom-api-actions.mdx

FAIL — Item 2: Multiple ASCII umlaut substitutions Examples:

• "persoenliche" → "persönliche"
• "Ausfuehrung" → "Ausführung"
• "unabhaengig" → "unabhängig"
• "Ungueltige" → "Ungültige"
• "Loesung" → "Lösung"
• "Wofuer" → "Wofür"
• "Ausfuehren" → "Ausführen"

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build/tools/overview.mdx

FAIL — Item 2: Multiple ASCII umlaut substitutions Examples:

• "Faehigkeiten" → "Fähigkeiten"
• "ausfuehrt" → "ausführt"
• "Verstaendnis" → "Verständnis"
• "erklaeren" → "erklären"
• "loesen" → "lösen"
• "gruendlich" → "gründlich"
• "Testoberflaeche" → "Testoberfläche"
• "ausfuehren" → "ausführen"
• "Begruendung" → "Begründung"
• "noetigen" → "nötigen"

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build/tools/transfer-tools.mdx

FAIL — Item 2: Several ASCII umlaut substitutions Examples:

• "gewaehlten" → "gewählten"
• "gueltige" → "gültige"
• "SIP-faehiges" → "SIP-fähiges"
• "Fuelle" → "Fülle"

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build/tools/web-search.mdx

FAIL — Item 2: Multiple ASCII umlaut substitutions Examples:

• "zusaetzliche" → "zusätzliche"
• "zurueckgegebene" → "zurückgegebene"
• "Beschraenkungen" → "Beschränkungen"
• "Personlichkeit" → "Persönlichkeit"
• "Benoetigt" → "Benötigt"
• "haengt" → "hängt"
• "Laenge" → "Länge"
• "vertrauenswuerdige" → "vertrauenswürdige"
• "Guenstiger" → "Günstiger"
• "zaehlt" → "zählt"

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build/voice-speech/ai-pipeline-guide.mdx

PASS — Du-form throughout. Umlauts correct.

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build/voice-speech/ambient-sound.mdx

PASS — Du-form throughout. Umlauts correct.

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build/voice-speech/choose-ai-model.mdx

PASS — Du-form throughout. Umlauts correct.

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build/voice-speech/custom-pronunciations.mdx

PASS — Du-form throughout. Umlauts correct.

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build/voice-speech/select-voice.mdx

PASS — Du-form throughout. Umlauts correct.

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build/voice-speech/thinking-sounds.mdx

PASS — Du-form throughout. Umlauts correct.

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build/voice-speech/transcriber.mdx

PASS — Du-form throughout. Umlauts correct.

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build/voice-speech/voice-cloning.mdx

FAIL — Item 2: ASCII umlaut substitution Example (line 23, Warning block):

• "ausdrueckliche" → "ausdrückliche"

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build/voice-speech/voice-settings.mdx

PASS — Du-form throughout. Umlauts correct.

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changelog.mdx

PASS — Clean German throughout. Umlauts correct.

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examples/appointment-booking.mdx

PASS — Minimal German body text; frontmatter umlauts correct.

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examples/customer-support.mdx

PASS — Minimal German body text; frontmatter umlauts correct.

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examples/lead-qualification.mdx

PASS — Minimal German body text; frontmatter umlauts correct.

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examples/outbound-campaign.mdx

PASS — Minimal German body text; frontmatter umlauts correct.

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examples/receptionist.mdx

PASS — Minimal German body text; frontmatter umlauts correct.

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faq.mdx

PASS — Du-form throughout. Umlauts correct.

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glossary.mdx

PASS — Du-form throughout. Umlauts correct.

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introduction.mdx

PASS — Du-form throughout. Umlauts correct.

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launch/buy-numbers.mdx

PASS — Du-form throughout. Umlauts correct.

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launch/campaign-outbound-launch.mdx

PASS — Du-form throughout. Umlauts correct.

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launch/outbound-compliance.mdx

PASS — Du-form throughout. Umlauts correct.

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launch/overview.mdx

PASS — Du-form throughout. Umlauts correct.

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launch/phone-numbers.mdx

PASS — Du-form throughout. Umlauts correct.

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launch/production-checklist.mdx

PASS — Du-form throughout. Umlauts correct.

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launch/schedules.mdx

PASS — Du-form throughout. Umlauts correct.

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launch/sip-providers.mdx

PASS — Du-form throughout. Umlauts correct.

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launch/sip-providers/3cx.mdx

PASS — Du-form throughout. Umlauts correct.

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launch/sip-providers/easybell.mdx

PASS — Du-form throughout. Umlauts correct.

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launch/sip-providers/fonial.mdx

PASS — Du-form throughout. Umlauts correct.

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launch/sip-providers/fritzbox.mdx

PASS — Du-form throughout. Umlauts correct.

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launch/sip-providers/nfon.mdx

PASS — Du-form throughout. Umlauts correct.

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launch/sip-providers/placetel.mdx

PASS — Du-form throughout. Umlauts correct.

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launch/sip-providers/sipgate.mdx

PASS — Du-form throughout. Umlauts correct.

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launch/sip-providers/starface.mdx

PASS — Du-form throughout. Umlauts correct.

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launch/sip-providers/telnyx.mdx

PASS — Du-form throughout. Umlauts correct.

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launch/sip-providers/twilio.mdx

PASS — Du-form throughout. Umlauts correct.

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launch/sip-trunks.mdx

PASS — Du-form throughout. Umlauts correct.

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launch/troubleshooting-deployment.mdx

PASS — Du-form throughout. Umlauts correct.

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launch/web-widget-deployment.mdx

PASS — Du-form throughout. Umlauts correct.

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launch/web-widget-implementation.mdx

PASS — Du-form throughout. Umlauts correct.

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manage/campaigns/overview.mdx

PASS — Du-form throughout. Umlauts correct.

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manage/contacts/import-export.mdx

PASS — Du-form throughout. Umlauts correct.

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manage/contacts/overview.mdx

PASS — Du-form throughout. Umlauts correct.

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manage/conversations/detail.mdx

PASS — Du-form throughout. Umlauts correct.

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manage/conversations/overview.mdx

PASS — Du-form throughout. Umlauts correct.

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manage/dashboard.mdx

PASS — Du-form throughout. Umlauts correct.

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manage/notifications.mdx

PASS — Du-form throughout. Umlauts correct.

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manage/overview.mdx

PASS — Du-form throughout. Umlauts correct.

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manage/quality-studio/issues.mdx

PASS — Du-form throughout. Umlauts correct.

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manage/quality-studio/overview.mdx

PASS — Du-form throughout. Umlauts correct.

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manage/tasks/overview.mdx

PASS — Du-form throughout. Umlauts correct.

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manage/tasks/views.mdx

PASS — Du-form throughout. Umlauts correct.

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manage/trust-center/overview.mdx

PASS — Du-form throughout. Umlauts correct.

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manage/web-widgets/configuration.mdx

PASS — Du-form throughout. Umlauts correct.

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manage/web-widgets/overview.mdx

PASS — Du-form throughout. Umlauts correct.

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manage/web-widgets/share-links.mdx

PASS — Du-form throughout. Umlauts correct.

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​

mcp-docs/overview.mdx

PASS — Du-form throughout. Umlauts correct.

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partner-network/affiliate-program.mdx

PASS — Du-form throughout. Umlauts correct.

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partner-network/partner-program.mdx

PASS — Du-form throughout. Umlauts correct.

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phone-numbers/regulatory-bundles.mdx

PASS — Du-form throughout. Umlauts correct.

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quickstart.mdx

PASS — Du-form throughout. Umlauts correct.

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​

reference/error-codes.mdx

PASS — Placeholder body only (English stub sentence); frontmatter umlauts correct.

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​

reference/limits-quotas.mdx

PASS — Placeholder body only (English stub sentence); frontmatter umlauts correct.

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​

reference/simple-vs-expert.mdx

PASS — Placeholder body only (English stub sentence); frontmatter umlauts correct.

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​

reference/supported-providers.mdx

PASS — Placeholder body only (English stub sentence); frontmatter umlauts correct.

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​

reference/webhook-events.mdx

PASS — Placeholder body only (English stub sentence); frontmatter umlauts correct.

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​

test/debugging.mdx

PASS — Du-form throughout. Umlauts correct. Natural German prose.

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​

test/edge-cases.mdx

PASS — Du-form throughout. Umlauts correct. Well-written German.

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​

test/integration-testing.mdx

PASS — Du-form throughout. Umlauts correct. Natural German throughout.

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test/overview.mdx

PASS — Du-form throughout. Umlauts correct.

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​

test/phone-testing.mdx

PASS — Du-form throughout. Umlauts correct.

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test/test-scenarios.mdx

PASS — Du-form throughout. Umlauts correct. Natural German throughout.

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​

test/web-simulator.mdx

PASS — Du-form throughout. Umlauts correct.

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​

troubleshooting/call-quality.mdx

PASS — Placeholder body only (English stub sentence); frontmatter umlauts correct.

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troubleshooting/campaigns.mdx

PASS — Placeholder body only (English stub sentence); frontmatter umlauts correct.

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troubleshooting/common-issues.mdx

PASS — Placeholder body only (English stub sentence); frontmatter umlauts correct.

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troubleshooting/custom-actions.mdx

PASS — Placeholder body only (English stub sentence); frontmatter umlauts correct.

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troubleshooting/knowledge-issues.mdx

PASS — Placeholder body only (English stub sentence); frontmatter umlauts correct.

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troubleshooting/tools-integrations.mdx

PASS — Placeholder body only (English stub sentence); frontmatter umlauts correct.

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Files Requiring Fixes

The following 21 files all FAIL on checklist item 2 (ASCII umlaut substitutions). No files fail on item 1 (Sie/Ihr/Ihnen). All substitutions follow the same pattern: ä→ae, ö→oe, ü→ue, ß→ss.