---
id: azure-communication-callautomation
version: "1.6.0"
license: MIT License
license_treatment: permissive
maintenance: active
---

# azure-communication-callautomation — Microsoft Azure Communication Call Automation Client Library for Python

License: permissive · Maintenance: active · Downloads: 213.7K/mo

## What it is and what it does

This package is the official Python SDK for Azure Communication Call Automation, a service that lets you programmatically initiate, manage, and record voice calls over PSTN and Azure Communication Services channels. It exposes two main interfaces: CallAutomationClient for starting calls and managing recordings, and CallConnectionClient for controlling an active call (e.g., transferring, playing media). The SDK relies on callback events sent to a URL you provide to track call state and respond to incoming calls; you handle these events in your own server-side logic.

The package targets developers building intelligent call workflows—IVR systems, call centers, or voice bots—where the call logic runs on your servers rather than in a client application. It integrates with Azure's identity and core libraries, so you authenticate using standard Azure credentials and work with Azure Communication identifiers for participants.

Use it for:

- Build an IVR system that answers calls, plays prompts, and routes based on user input.
- Record and archive voice calls for compliance or quality assurance in a call center.
- Automate outbound call campaigns that dial a list of numbers and play a message.
- Transfer incoming calls between agents or departments programmatically.
- Play media (audio files) to all participants in an active call.

## Worth the install?

AI-flagged interpretation of the facts above — verify before relying.

Provides a Python SDK to build server-based call workflows, handle voice and PSTN calls, and manage call recording through Azure Communication Services.

Yes, if you need to build call automation workflows on Azure. The package is actively maintained, has no known vulnerabilities, uses a permissive MIT license, and has low install friction. It is production-stable and suitable for commercial use. Install only if you have an Azure subscription and a deployed Communication Services resource; the SDK alone is not useful without that infrastructure.

## Install

pip install azure-communication-callautomation
uv add azure-communication-callautomation
poetry add azure-communication-callautomation

## Installing azure-communication-callautomation

Before you install: Low friction install with three lightweight runtime dependencies (isodate, azure-core, typing-extensions). Actively maintained with a recent release 51 days ago; repository shows ongoing development with no archival.

License in practice: MIT License permits commercial and private use with minimal restrictions; you may use, modify, and distribute the package provided you include the license notice.

Quickstart:

pip install azure-communication-callautomation

from azure.identity import DefaultAzureCredential
from azure.communication.callautomation import CallAutomationClient

endpoint_url = 'your-endpoint'
credential = DefaultAzureCredential()
client = CallAutomationClient(endpoint_url, credential)

Requires Python 3.9 or later; you must have an Azure subscription and a deployed Communication Services resource with a valid endpoint URL.

Verify before relying:

- Whether the package supports real-time bidirectional communication or is callback-only for events.
- Specific latency or throughput limits for call operations and recording.
- Cost model and pricing tier implications for production use.

## Package facts

- License: MIT License (permissive)
- Python support: supports_current
- Install friction: low
- Maintenance: active
- Downloads: 213.7K/month (top 15,000 on PyPI)
- Known vulnerabilities: none known

## Tags

azure call automation sdk, voice call workflow python, pstn call management, azure communication services, call recording sdk, server-side call control, azure call api python, azure-sdk, call-automation, voice-api

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