# Azure Communication Callingserver Java

> Provides guidance for maintaining legacy Azure Communication CallingServer Java SDK code and migrating to the Call Automation SDK.

- Skill: `microsoft/azure-communication-callingserver-java` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add microsoft/azure-communication-callingserver-java`
- Raw SKILL.md: https://api.skillmd.com/api/skills/microsoft/azure-communication-callingserver-java/raw
- Safety review: PASS (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: DevOps & Infra, Docs & Writing, Technical Writing
- Tags: Azure, Call Automation, Communication Services, Java, Legacy, Migration, Sdk
- License: MIT
- Author: Microsoft (https://skillmd.com/u/microsoft), verified publisher
- Updated: 2026-07-06
- Page: https://skillmd.com/skills/microsoft/azure-communication-callingserver-java

---


# Azure Communication CallingServer (Java) - DEPRECATED

> **⚠️ DEPRECATED**: This SDK has been renamed to **Call Automation**. For new projects, use `azure-communication-callautomation` instead. This skill is for maintaining legacy code only.

## Migration to Call Automation

```xml
<!-- OLD (deprecated) -->
<dependency>
    <groupId>com.azure</groupId>
    <artifactId>azure-communication-callingserver</artifactId>
    <version>1.0.0-beta.5</version>
</dependency>

<!-- NEW (use this instead) -->
<dependency>
    <groupId>com.azure</groupId>
    <artifactId>azure-communication-callautomation</artifactId>
    <version>1.6.0</version>
</dependency>
```

## Class Name Changes

| CallingServer (Old) | Call Automation (New) |
|---------------------|----------------------|
| `CallingServerClient` | `CallAutomationClient` |
| `CallingServerClientBuilder` | `CallAutomationClientBuilder` |
| `CallConnection` | `CallConnection` (same) |
| `ServerCall` | Removed - use `CallConnection` |

## Legacy Client Creation

```java
// OLD WAY (deprecated)
import com.azure.communication.callingserver.CallingServerClient;
import com.azure.communication.callingserver.CallingServerClientBuilder;

CallingServerClient client = new CallingServerClientBuilder()
    .connectionString("<connection-string>")
    .buildClient();

// NEW WAY
import com.azure.communication.callautomation.CallAutomationClient;
import com.azure.communication.callautomation.CallAutomationClientBuilder;

CallAutomationClient client = new CallAutomationClientBuilder()
    .connectionString("<connection-string>")
    .buildClient();
```

## Legacy Recording

```java
// OLD WAY
StartRecordingOptions options = new StartRecordingOptions(serverCallId)
    .setRecordingStateCallbackUri(callbackUri);

StartCallRecordingResult result = client.startRecording(options);
String recordingId = result.getRecordingId();

client.pauseRecording(recordingId);
client.resumeRecording(recordingId);
client.stopRecording(recordingId);

// NEW WAY - see azure-communication-callautomation skill
```

## For New Development

**Do not use this SDK for new projects.** 

See the `azure-communication-callautomation-java` skill for:
- Making outbound calls
- Answering incoming calls
- Call recording
- DTMF recognition
- Text-to-speech / speech-to-text
- Adding/removing participants
- Call transfer

## Trigger Phrases

- "callingserver legacy", "deprecated calling SDK"
- "migrate callingserver to callautomation"