azure-communication-services
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 contact center/Job Router solutions, and other Azure Communication Services related development tasks. Not for Azure Notification Hubs (use azure-notification-hubs), Azure Web PubSub (use azure-web-pubsub), Azure SignalR Service (use azure-signalr-service), Azure AI Bot Service (use azure-bot-service).
What this skill does
# 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-L111 | Diagnosing and fixing ACS calling, SMS, email, Teams, PSTN, audio/video, device, network, and SDK issues, plus collecting logs, UFD events, and diagnostics for support. | | Best Practices | L112-L137 | Best practices for ACS calling, SMS, email, IDs, auth, Teams interop, network/quality, spam/opt-out compliance, and production-ready virtual visit and meeting experiences. | | Decision Making | L138-L153 | Guidance on ACS/Teams design decisions: PSTN options and pricing, phone numbers, Teams interop and licensing, gov cloud usage, and migrating from Twilio Video/Chat to ACS. | | Architecture & Design Patterns | L154-L159 | Designing scalable contact center solutions with ACS and patterns for integrating ACS with ExpressRoute for secure, private connectivity and network architecture. | | Limits & Quotas | L160-L227 | Limits, quotas, regional availability, and restrictions for ACS calling, phone numbers, email, Teams interop, media features, and troubleshooting token/metric-related issues. | | Security | L228-L254 | Security, auth, and compliance for ACS: encryption, identities, HMAC, caller ID, email/SMTP, Teams interop, captions/transcription, emergency calling, and secure webhooks/Rooms. | | Configuration | L255-L333 | Monitoring, logging, metrics, and diagnostics for ACS (chat, voice/video, SMS, email, calling, routing), plus configuration for Teams interop, domains, routing, UI library, and SMS/email compliance. | | Integrations & Coding Patterns | L334-L480 | Patterns and code to integrate ACS calling, chat, SMS, email, Rooms, Job Router, and WhatsApp with apps, bots, Teams, OpenAI, push/events, media, and telephony features. | | Deployment | L481-L485 | Infrastructure and deployment guidance for Azure Communication Services: direct routing requirements and automating ACS/Email resource provisioning 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 | | Monitor logs and metrics for ACS Teams external users | https://learn.microsoft.com/en-us/azure/communication-services/concepts/interop/guest/monitor-logs-metrics | | 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 | | 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 ACS PSTN call failures using result codes | 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/en-us/azure/communication-services/concepts/voice-video-calling/call-diagnostics | | Diagnose Azure Communication Services call quality issues | https://learn.microsoft.com/en-us/azure/communication-services/concepts/voice-video-calling/call-diagnostics | | Review known issues in ACS native calling SDKs | https://learn.microsoft.com/en-us/azure/communication-services/concepts/voice-video-calling/known-issues-native | | Review known issues for ACS WebJS calling SDK | https://learn.microsoft.com/en-us/azure/communication-services/concepts/voice-video-calling/known-issues-webjs | | Diagnose and fix ACS web VoIP call quality issues | https://learn.microsoft.com/en-us/azure/communication-services/concepts/voice-video-calling/troubleshoot-web-voip-quality | | Use User Facing Diagnostics to detect ACS call issues | https://learn.microsoft.com/en-us/azure/communication-services/concepts/voice-video-calling/user-facing-diagnostics | | Troubleshoot ACS UI Library calls and collect debug info | https://learn.microsoft.com/en-us/azure/communication-services/how-tos/ui-library-sdk/troubleshooting | | Troubleshoot Azure-linked WhatsApp Business accounts | https://learn.microsoft.com/en-us/azure/communication-services/quickstarts/advanced-messaging/whatsapp/whatsapp-business-account-faq | | Resolve audio delay issues in ACS calls | https://learn.microsoft.com/en-us/azure/communication-services/resources/troubleshooting/voice-video-calling/audio-issues/delay-issue | | Fix echo problems in ACS audio calls | https://learn.microsoft.com/en-us/azure/communication-services/resources/troubleshooting/voice-video-calling/audio-issues/echo-issue | | Troubleshoot low incoming audio volume in ACS | https://learn.microsoft.com/en-us/azure/communication-services/resources/troubleshooting/voice-video-calling/audio-issues/incoming-audio-low-volume | | Resolve one-way audio from faulty microphones in ACS | https://learn.microsoft.com/en-us/azure/communication-services/resources/troubleshooting/voice-video-calling/audio-issues/microphone-issue | | Fix one-way audio when microphone permission is denied | https://learn.microsoft.com/en-us/azure/communication-services/resources/troubleshooting/voice-video-calling/audio-issues/microphone-permission | | Handle one-way audio caused by network issues in ACS | https://learn.microsoft.com/en-us/azure/communication-services/resources/troubleshooting/voice-video-calling/audio-issues/network-issue | | Diagnose ACS audio issues using UFD and device checks | https://learn.microsoft.com/en-us/azure/communication-services/resources/troubleshooting/voice-video-calling/audio-issues/overview | | Diagnose poor audio quality in ACS calls | https://learn.microsoft.com/en-us/azure/communication-services/resources/troubleshooting/voice-video-calling/audio-issues/poor-quality | | Resolve one-way audio from speaker issues in ACS | https://learn.microsoft.com/en-us/azure/communication-services/resources/troubles
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