Azure Communication Callingserver Java — Agent Skill by Microsoft

From the author

Azure Communication Services CallingServer (legacy) Java SDK. Note - This SDK is deprecated. Use azure-communication-callautomation instead for new projects. Only use this skill when maintaining legacy code.

— the description by Microsoft

AutoGineer summary

Written by AutoGineer from the skill’s own files, not by the author

This skill provides reference information for the deprecated Azure Communication Services CallingServer Java SDK. It is intended strictly for developers maintaining legacy applications that have not yet migrated to the current Call Automation SDK. The documentation outlines the necessary steps to transition from the old CallingServer client classes and recording methods to the modern Call Automation equivalents.

What it does

Provides legacy documentation for the CallingServer Java SDK
Outlines class name changes from CallingServer to Call Automation
Demonstrates legacy client initialization patterns
Shows legacy call recording implementation
Facilitates migration planning to modern SDKs

When to use it

When maintaining or debugging existing codebases using the deprecated CallingServer SDK
When planning a migration from CallingServer to Call Automation
When identifying legacy dependencies that need to be updated

Advantages

Clearly identifies deprecated components
Provides direct mapping between legacy and modern API structures
Reduces technical debt by highlighting the path to migration

Usage examples

“How do I initialize the legacy CallingServer client in Java?”: The agent provides the code snippet using CallingServerClientBuilder to establish a connection string-based client.
“What is the replacement for CallingServerClient in the new SDK?”: The agent identifies CallAutomationClient as the direct replacement and provides the updated import and initialization syntax.

Install

Download the skill as a ZIP:
https://autogineer.com/agent-skills/microsoft/azure-communication-callingserver-java/download

Unzip it into the cross-client skills folder of your project:

mkdir -p .agents/skills && unzip azure-communication-callingserver-java.zip -d .agents/skills

Documentation by Microsoft

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

<!-- 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

// 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

// 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"

Files

ATTRIBUTION.mdAdded by AutoGineer1021 B
LICENSELicence file added by AutoGineer1.1 KiB
SKILL.md2.8 KiB
references/examples.md2.5 KiB

LICENSE

    MIT License

    Copyright (c) Microsoft Corporation.

    Permission is hereby granted, free of charge, to any person obtaining a copy
    of this software and associated documentation files (the "Software"), to deal
    in the Software without restriction, including without limitation the rights
    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    copies of the Software, and to permit persons to whom the Software is
    furnished to do so, subject to the following conditions:

    The above copyright notice and this permission notice shall be included in all
    copies or substantial portions of the Software.

    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
    SOFTWARE

Requirements and compatibility

Works with: Claude Code, Claude apps, OpenAI Codex, GitHub Copilot, Cursor, Gemini CLI, Kiro, OpenCode, Goose, Amp, Roo Code, JetBrains Junie, Factory Droid, Devin (ex-Windsurf), Mistral Vibe, OpenHands, Letta

“Works with” means the tool reads the open Agent Skills format; a skill written for one tool may use features others lack.

Security

No issues found by our static scan· No issues found

A static scan is not a guarantee. Skills are third-party content: review a skill before you let an agent use it.

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Download ZIP

The ZIP holds the skill’s files, its licence files and an ATTRIBUTION.md. Download azure-communication-callingserver-java.zip