/azure-communication-services

name: azure-communication-services
description: Expert knowledge for Azure Communication Services development including troubleshooting, best practices, decision making, architecture & design patterns, limits & quotas, security, configuration, integrations & coding patterns, and deployment. Use when building ACS calling, chat, SMS, email, Teams interop, or PSTN/Direct Routing solutions, and other Azure Communication Services related development tasks. Not for Azure Notification Hubs (use azure-notification-hubs), Azure SignalR Service (use azure-signalr-service), Azure Web PubSub (use azure-web-pubsub), Azure AI Bot Service (use azure-bot-service).
compatibility: Requires network access. Uses mcp_microsoftdocs:microsoft_docs_fetch or fetch_webpage to retrieve documentation.
metadata:
  generated_at: "2026-11-08"
  generator: "docs2skills/1.0.0"

Azure Communication Services Skill

This skill provides expert guidance for Azure Communication Services. Covers troubleshooting, best practices, decision making, architecture & design patterns, limits & quotas, security, configuration, integrations & coding patterns, and deployment. It combines local quick-reference content with remote documentation fetching capabilities.

How to Use This Skill

> **IMPORTANT for Agent**: Use the **Category Index** below to locate relevant sections. For categories with line ranges (e.g., `L35-L120`), use `read_file` with the specified lines. For categories with file links (e.g., `[security.md](security.md)`), use `read_file` on the linked reference file

> **IMPORTANT for Agent**: If `metadata.generated_at` is more than 3 months old, suggest the user pull the latest version from the repository. If `mcp_microsoftdocs` tools are not available, suggest the user install it: [Installation Guide](https://github.com/MicrosoftDocs/mcp/blob/main/README.md)

This skill requires **network access** to fetch documentation content:

• **Preferred**: Use `mcp_microsoftdocs:microsoft_docs_fetch` with query string `from=learn-agent-skill`. Returns Markdown.
• **Fallback**: Use `fetch_webpage` with query string `from=learn-agent-skill&accept=text/markdown`. Returns Markdown.

Category Index

| Category | Lines | Description | |----------|-------|-------------| | Troubleshooting | L37-L108 | Diagnosing and fixing ACS issues across calling, SMS, email, PSTN/direct routing, Teams, WhatsApp, devices, audio/video quality, and collecting logs/diagnostics for detailed troubleshooting. | | Best Practices | L109-L135 | Best practices for ACS calling, SMS, email, Teams interop, auth, IDs, spam/reputation, network/VDI tuning, UX design, logging, and job routing to build reliable, production-ready apps | | Decision Making | L136-L162 | Planning and decision guides for migrating ACS chat/calling/telephony, integrating with Teams/Teams Phone, choosing PSTN/number options, and understanding pricing, licensing, and gov cloud interop. | | Architecture & Design Patterns | L163-L169 | Architectural guidance and patterns for integrating ACS with Teams via Call Automation, building contact centers, and using ExpressRoute for private, secure connectivity. | | Limits & Quotas | L170-L235 | Limits, quotas, eligibility rules, and regional restrictions for ACS calling, phone numbers, email, Teams interop, metrics, SDK support, and direct routing features. | | Security | L236-L263 | Security, auth, and compliance for ACS: identity and API auth, Teams/Rooms interop security, email/sender auth, encryption, data residency/privacy, telephony/emergency calling, and secure webhooks. | | Configuration | L264-L334 | Configuring logging, metrics, monitoring, routing, and domain/sender settings for ACS calling, chat, SMS, email, Rooms, Job Router, and Teams interoperability. | | Integrations & Coding Patterns | L335-L467 | Patterns and code samples for integrating ACS calling, chat, SMS, email, WhatsApp, Job Router, and UI libraries with Teams, OpenAI, bots, telephony, push/events, and advanced media/AI features. | | Deployment | L468-L473 | Guides for deploying ACS: infrastructure needs for Direct Routing, porting phone numbers, and automating ACS/Email resource setup with PowerShell. |

Troubleshooting

| Topic | URL | |-------|-----| | Use Job Router operational logs for diagnostics | https://learn.microsoft.com/en-us/azure/communication-services/concepts/analytics/logs/router-logs | | Troubleshoot ACS email custom domain configuration issues | https://learn.microsoft.com/en-us/azure/communication-services/concepts/email/email-domain-configuration-troubleshooting | | Troubleshoot common Teams Phone extensibility issues with ACS | https://learn.microsoft.com/en-us/azure/communication-services/concepts/interop/tpe/teams-phone-extensibility-troubleshooting | | Resolve common Azure SMS questions and issues | https://learn.microsoft.com/en-us/azure/communication-services/concepts/sms/sms-faq | | Monitor and troubleshoot ACS direct routing configuration | https://learn.microsoft.com/en-us/azure/communication-services/concepts/telephony/monitoring-troubleshooting-telephony/monitor-direct-routing | | Troubleshoot ACS direct routing outbound call failures | https://learn.microsoft.com/en-us/azure/communication-services/concepts/telephony/monitoring-troubleshooting-telephony/troubleshoot-outbound-calls | | Fix ACS direct routing TLS certificate and SIP OPTIONS issues | https://learn.microsoft.com/en-us/azure/communication-services/concepts/telephony/monitoring-troubleshooting-telephony/troubleshoot-tls-certificate-sip-options | | Troubleshoot Azure Communication Services PSTN call failures | https://learn.microsoft.com/en-us/azure/communication-services/concepts/telephony/troubleshooting-pstn-call-failures | | Collect troubleshooting information for Azure Communication Services | https://learn.microsoft.com/en-us/azure/communication-services/concepts/troubleshooting-info | | Use ACS Call Diagnostics to investigate call issues | https://learn.microsoft.com/