Phone

Zoom Phone

Implementation guidance for Zoom Phone integrations across API, webhook/event, Smart Embed, and URI-launch workflows.

Official docs:

• https://developers.zoom.us/docs/phone/
• CRM sample reference: https://github.com/zoom/CRM-Sample

The current API Hub inventory contains 391 Phone operations (verified 2026-07-10), including expanded call-handling/settings coverage and call-element recording/voicemail resources. Use the generated Phone API reference for exact paths rather than relying on an older endpoint list in examples.

Routing Guardrail

• If the user needs embedded softphone behavior in a web app, use Smart Embed (examples/smart-embed-postmessage-bridge.md).
• If the user needs call records, analytics, or automation, use Phone REST API and webhooks (references/deprecations-and-migrations.md).
• If the user needs click-to-dial/SMS launch from external UI, use URI schemes (zoomphonecall://, zoomphonesms://).
• If the user mixes Zoom Phone and Contact Center, chain with ../contact-center/SKILL.md.

Quick Links

Start here:

1. concepts/architecture-and-lifecycle.md
2. scenarios/high-level-scenarios.md
3. references/deprecations-and-migrations.md
4. references/forum-top-questions.md
5. references/smart-embed-event-contract.md
6. references/call-handling-patterns.md
7. references/environment-variables.md
8. references/crm-sample-validation.md
9. troubleshooting/common-issues.md
10. RUNBOOK.md
11. examples/smart-embed-postmessage-bridge.md
12. examples/phone-api-service-pattern.md
13. references/source-map.md

Common Lifecycle Pattern

1. Provision account prerequisites (Zoom Phone license, admin setup, SMS readiness).
2. Create OAuth app and scopes in Marketplace.
3. Choose integration surface:

• Smart Embed (iframe + postMessage)
• REST + webhooks
• URI launch (callto, tel, zoomphonecall, zoomphonesms)

4. Capture real-time events (Smart Embed events and/or webhooks).
5. Persist call identifiers and correlate records (call_id, call_history_uuid, call_element_id).
6. Apply migration-safe data mapping (v1 -> v2 -> v3) and handle renamed fields.
7. Harden security (origin validation, webhook signature validation, least-privilege scopes).

Need to create/configure the Marketplace app first? Use Marketplace app management for General App or S2S app setup, admin/user scope selection, event subscription behavior, and credential response shapes before implementing Phone APIs or Smart Embed workflows. Start from the General App Phone template or S2S Phone template.

High-Level Scenarios

• CRM softphone pane using Smart Embed + contact search/match callbacks.
• Click-to-call from account/contact table via zp-make-call.
• Call disposition workflow using zp-save-log-event and custom notes page.
• SMS engagement workflow with zoomphonesms:// and zp-sms-log-event.
• Real-time operational board driven by phone.* webhook events.
• Call analytics migration from legacy call logs to call history/call elements.
• Admin automation for user/auto-receptionist/call-queue call-handling settings.

See scenarios/high-level-scenarios.md for details.

Chaining

• OAuth setup/token lifecycle: ../oauth/SKILL.md
• Marketplace app creation and manifest validation: ../rest-api/references/marketplace-apps.md
• Phone and account resources via REST: ../rest-api/SKILL.md
• Event delivery and signature validation: ../webhooks/SKILL.md
• Contact Center blended journey: ../contact-center/SKILL.md

Environment Variables

• See references/environment-variables.md for standardized .env keys and where to find each value.