SIP Library

A simple VoIP library that supports common SIP and IVR operations.

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Vol. 2 2022 - What's New

SIP Library

SIP Components

IPWorks VoIP provides a simple SIP component designed to facilitate common VoIP operations. Quickly integrate functionality to establish outgoing calls or accept incoming calls. Additional features such as text-to-speech, playing pre-recorded messages, call recording, and conference calls are also supported. Compatible with on-premises SIP servers and hosted SIP providers.

Intuitive API

Make and receive calls with only a few lines of code. The API is designed with simplicity in mind.

Standard Softphone Features

Full support for common operations including Call, Answer, Hangup, Hold, Transfer and more. List and select speakers and microphones on the system.


Existing text can be easily converted and played during a call. Playback of .wav files is also supported.

Conferencing Support

Easily manage conferencing with simple operations to List, Join, and Leave conferences.

Create IVR Menus

Create custom IVR menus and route calls to pre-recorded messages or other inbound destinations.

Uniform & Extensible Design

Very easy to use, with a uniform, intuitive, and extensible design. Common component interfaces across platforms and technologies.

Red Carpet Vol. 2 2022 Now Available

IPWorks 2022, .NET Async, FIPS Compliance, SSL Toolkit, Delphi FMX, and more

Updated Red Carpet Subscription toolkits and products are now generally available. IPWorks 2022 toolkits updates include many new features and components, including .NET Async, Delphi FMX support, and more. FIPS compliance is supported in IPWorks SSH and IPWorks SSL toolkits. S3 Drve and SFTP Drive have new capabilities for running on servers, while the Cloud toolkits are easier to use and support OAuth 2.0.

Download IPWorks VoIP or read the update highlights.

Product Features

  • Support for standard softphone features including Call, Answer, Hangup, Hold, Transfer and more.
  • Text-to-speech support.
  • Record ongoing calls.
  • Support for conferencing operations.
  • A complete unified framework with a common, easy-to-learn object model and simplified interfaces enable you to do more.
  • List and select available microphones and speakers.
  • Playback .wav files from within a call.
  • Create interactive menus and route inbound calls.
  • Components are thread-safe on critical members.
  • Fast, robust, reliable components that consume minimal resources.
  • Native development components for all supported platforms and technologies.
  • Rigorously tested, rock solid libraries that have undergone hundreds of thousands of hours of testing both internally by our QA team and externally through customer installations.
  • Detailed reference documentation, sample applications, fully-indexed help files, and an extensive online knowledge base.
  • Backed by multi-tier professional support, including free email support and enterprise-level paid support.

Supported Platforms


Managed .NET Components

Fully-managed .NET components, with no external dependencies. The edition of choice for fully-managed .NET applications.

  • Fully-managed .NET components written in C#.
  • .NET Standard 2.0 and 2.1 support.
  • Support for .NET 7, .NET 6, .NET 5, .NET Core 3.1, and earlier.
  • Comprehensive integrated product documentation.
  • Seamless integration with Visual Studio.
  • Support for .NET Framework 2.0 - 4.8.
  • Extensive demo applications written in C#.


C++ Class Libraries (Windows)

C++ classes packaged in 32-bit & 64-bit Windows DLLs. The edition of choice for C++ programming.

  • 32-bit & 64-bit C++ class libraries (Windows DLLs).
  • Static libraries for additional deployment options.
  • Extensive console demo applications.
  • Comprehensive documentation.
  • Seamless integration with popular development environments including Microsoft Visual C++.


Delphi VCL Components

Native Delphi VCL components with no external dependencies. It features the same trustworthy components that come with other editions, available as native Delphi VCLs for real Delphi performance.

  • Native Delphi VCL components.
  • Extensive Delphi demo applications.
  • Comprehensive integrated product documentation.
  • Support for all Delphi versions between Delphi 6 and RAD Studio 11.

C++ Builder

Embarcadero C++ Builder VCL's

Native Embarcadero C++ Builder components, written in C++ and compiled with the C++ Builder compiler for blazing performance. The natural choice for C++ Builder programming.

C++ Builder
  • Native C++ Builder components.
  • Extensive C++ Builder demo applications.
  • Comprehensive integrated product documentation.
  • x86 and x64 platform support.
  • Support for all C++ Builder versions between C++ Builder 2009 and RAD Studio 11.


Python modules (Windows)

Python modules for Windows featuring the same trustworthy components that come with other editions, available for use in Python 3.

  • Python modules for Windows.
  • Support for Python 3.
  • Extensive console demo applications.
  • Easy installation using PIP.
  • Demo applications and comprehensive documentation.

Components for VoIP

The following components are included in IPWorks VoIP. Please note that due to platform limitations, not all components are available in all editions.

Included Demos

The following demos are installed with the product. Download the FREE trial to get started.

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