# Modify Calls In Progress

In this guide, we'll show you how to manipulate live phone calls using the language of your choice.

> \[!NOTE]
>
> Choose a language below to get started:

* **[C# / .NET](/docs/voice/tutorials/how-to-modify-calls-in-progress/csharp)**
* **[Java](/docs/voice/tutorials/how-to-modify-calls-in-progress/java)**
* **[Node.js](/docs/voice/tutorials/how-to-modify-calls-in-progress/node)**
* **[PHP](/docs/voice/tutorials/how-to-modify-calls-in-progress/php)**
* **[Python](/docs/voice/tutorials/how-to-modify-calls-in-progress/python)**
* **[Ruby](/docs/voice/tutorials/how-to-modify-calls-in-progress/ruby)**