GemBox.Email is a .NET component that enables you to read, write, receive, and send emails from your .NET applications using one simple API. With GemBox.Email you get a fast and reliable component that’s easy to use. It requires only the .NET framework, so you can deploy your application easily without having to think about other licenses.

GemBox.Bundle is a package of .NET components that enable you to process office files (spreadsheets, documents, presentations, and emails) simply and efficiently. With our components you get fast and reliable results in an easy–to–use format. Only the .NET framework is required, so you can deploy your application easily without having to think about other licenses. And they’re up to 20 times faster than Microsoft automation!

GemBox.Bundle includes:
GemBox.Spreadsheet 4.3
GemBox.Document 2.9
GemBox.Pdf 1.3
GemBox.Presentation 2.3
GemBox.Email 1.3

Delphi and C++ Builder communication components. Protocols 3964 and 3964R are implemented.

Features:

Available for Delphi/C++ Builder 5 - 10.3 and Lazarus 2.0.4
Source code included in registered version
Royalty free distribution in applications

Communication protocols 3964 and 3964R for .NET.
contains ComPort.NET serial communication component
supports .NET Framework 4.x
source code included in registered version
royalty free distribution in applications

Delphi library to communicate with attached media and storage devices. Applications can explore devices, send and receive content, and even control devices.

uses standard Windows Portable Devices API
supports Media Transport Protocol (MTP) and Mass Storage Class (MSC) devices
supports Windows 32 and Windows 64
available for Delphi/C++ Builder 5 - 10.3
source code included in registered version
distributing library in applications is royalty free

SIP .NET is Session Initiation Protocol API for .NET Framework / .NET Core. The API is written in 100% managed C# code.

Features
Digest authentication
Supports TCP and UDP protocols
Supports call hold, call waiting, call transfer, call forward, etc.
Support methods: REGISTER, INVITE, OPTIONS, PRACK, ACK, BYE, CANCEL, MESSAGE, SUBSCRIBE, NOTIFY, UPDATE, INFO, REFER, PUBLISH
Create SDP messages
Parse SDP messages
Register
Unregister

sgcWebSockets is a complete package providing access to WebSockets protocol, allowing to create WebSockets Servers, Intraweb Clients or WebSocket Clients in VCL, Lazarus/FPC and Firemonkey applications. WebSocket is a computer communications protocol, providing full-duplex communication channels over a single TCP connection. The WebSocket protocol was standardized by the IETF as RFC 6455 in 2011. WebSocket is designed to be implemented in web browsers and web servers, but it can be used by any client or server application. The WebSocket protocol makes possible more interaction between a browser and a web site, facilitating live content and the creation of real-time game.

sgcWebSockets is a complete package providing access to WebSockets protocol, allowing to create WebSockets Servers, Intraweb Clients or WebSocket Clients in VCL, Lazarus/FPC and Firemonkey applications. WebSocket is a computer communications protocol, providing full-duplex communication channels over a single TCP connection. The WebSocket protocol was standardized by the IETF as RFC 6455 in 2011. WebSocket is designed to be implemented in web browsers and web servers, but it can be used by any client or server application. The WebSocket protocol makes possible more interaction between a browser and a web site, facilitating live content and the creation of real-time game.

Delphi and C++ Builder components to enable applications interact with FTP, and HTTP/HTTPS protocols to access Internet resources.
FTP, HTTP and HTTPS protocols supported
well suited for accessing REST services
uses standard Windows WinINet API
available for Delphi/C++ Builder 5 - 10.2 and Lazarus 1.8.4
source code included in registered version
royalty free distribution

sgcWebSockets is a complete package providing access to WebSockets protocol, allowing to create WebSockets Servers, Intraweb Clients or WebSocket Clients in VCL, Lazarus/FPC and Firemonkey applications. WebSocket is a computer communications protocol, providing full-duplex communication channels over a single TCP connection. The WebSocket protocol was standardized by the IETF as RFC 6455 in 2011. WebSocket is designed to be implemented in web browsers and web servers, but it can be used by any client or server application. The WebSocket protocol makes possible more interaction between a browser and a web site, facilitating live content and the creation of real-time game.